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General Troubleshooting Tips

Try these first. Many issues can be solved in a few simple steps: General Troubleshooting Tips for Vernier Products

System Requirements

What are the system requirements for Logger Pro and Logger Lite?
Do you have Logger Pro for Chromebooks?
Will Logger Pro run in a 64-bit version of Windows XP, Vista, 7, or 8?
Is your software compatible with Mac OS X 10.8 Mountain Lion?
Do Logger Pro, Graphical Analysis and other Vernier apps run on the Microsoft Surface?
Does Logger Pro 3 support Windows tablets?
Do you have Logger Pro for Linux?
How do I use a screen reader like JAWS with Logger Pro?
Can I install Logger Pro 3 to run from a server or network location?
Will Logger Pro or Logger Lite work in a thin client environment?
What is the minimum version of Logger Pro and Logger Lite that can be used with my hardware?
Can I run Logger Pro in a different Language?
What is the maximum number of points I can collect/what is the maximum number of sensors or interfaces I can use?
How can I get the installer for an older version of Logger Pro, such as for Windows XP?

Installation Questions

How can I get the installer for an older version of Logger Pro, such as for Windows XP?
Do Vernier apps work with macOS 11, 12 and 13 ? Do they work with computers using Apple Silicon processors (M1 and M2)?
How can I install Logger Pro on several computers? Is there an MSI file or a silent installer?
How do I distribute Logger Pro 3 to my students?
What is your site license policy for Logger Pro and LabQuest Viewer computer software?
Why is the Logger Pro installer asking me for a password?
Why does the Logger Pro installer take so long to complete on Windows?
Issues with the silent installer with Logger Pro on Windows 7
The Logger Pro installer generates an error about my Quicktime version being too new.
My custom experiment files appear to be missing after installing newer versions of Logger Pro.
Can I install your software onto a USB drive?
Why does Logger Pro installer for 3.8.5 or newer complain about "unknown publisher" when I attempt to install?

Installation Issues (Windows®)

Logger Pro installer has trouble during the extracting files step
Why is the Logger Pro installer asking me for a password?
I am concerned that Logger Pro for Windows installs Quicktime. Is there an alternative?
How do I install Logger Pro without installing QuickTime?
Windows Pre-Logger Pro 3.11 original LabQuest and LabQuest Mini, and pre-3.12 LabPro drivers
Are the LabQuest 2 or LabQuest 3 device drivers installed correctly?
Logger Pro installer displays "Unhandled Exception"
When installing software, I get the message: Incompatible version of the RPC stub?
Why was QuickTime not installed on my Windows 2000 machine when I ran the Logger Pro 3.6 installer (or newer)?
Common causes of problems with the silent installer
Where does Logger Pro store experiment files?
Where does Logger Pro install its sample video files on Windows?
Does Logger Pro work with Universal Imaging Utility?
When installing Logger Pro, I get error 1152.
How do I install a driver for LabQuest Viewer software to enable communication with LabQuest 2 or LabQuest 3 via USB?
When I attempt to reinstall Logger Pro, I get a 1316 error.
I installed Logger Pro 3.8.6 (or newer) and do not see an option for Data Sharing.
How do I install the Jungo WinDriver for LabPro, LabQuest, and LabQuest Mini manually?
Logger Pro cannot find LabPro/LabQuest but the drivers look good.
Why does Windows complain that the device drivers aren't signed?
Why does Windows report 'MFPlat.DLL is missing from your computer' (or MFReadWrite.DLL) when launching Logger Pro or Logger Lite?
Converting from Jungo to WinUSB drivers manually

Installation Issues (macOS)

Logger Pro Update for Mac fails with a message about not being able to find an older version.
The Logger Pro OS X install fails with a message that "There were errors..."
Mac: When I update Logger Pro, the Logger Pro 3 folder in Applications does not contain the application itself.
Mac: How to recover from a bad datashare installation path?
macOS gives a message on launch of Logger Pro that "Logger Pro has not been optimized for your Mac"
When I try to run Logger Pro on my Mac, it re-installs.

Troubleshooting & Crashes

Logger Pro crashes on launch on my Mac, but it used to work.
I updated Logger Pro and no longer can connect to my Go Wireless Temp
Logger Pro shows only a white space where the graph should be.
Windows: Why does Logger Pro hang, crash, or take several minutes to come up when I start it?
Why does Logger Pro 3 (or Logger Lite) crash right after it opens?
Logger Pro 3.7 crashes when I update my LabPro OS.
Logger Pro 3.5 crashes at launch on Mac OS X 10.3.9
When using Mac OS X, why is the Logger Pro or Logger Lite window is missing, but the menu bar is visible.
Get message "The ordinal 18 could not be located in the dynamic link library VGPS_SDK.dll" after opening Logger Pro.
Files with cosine squared, gaussian or normalized gaussian fits fail in Logger Pro 3.8.4 and earlier
Logger Pro asserts or crashes with a message that the file is corrupted.
Logger Pro crashes when using the DCU and a Photogate with a LabPro.
Why does Logger Pro hang with a LabQuest when I close a second copy of LP?
Why does Logger Pro crash, hang, or refuse to launch when I attempt to start it? (advanced)
Why won't Logger Pro launch on non-English Windows 10? (resolved)
Why is Logger Pro/Logger Lite giving an error about mfc140u.dll or 0xc000007b?
Why does Windows report 'MFPlat.DLL is missing from your computer' (or MFReadWrite.DLL) when launching Logger Pro or Logger Lite?
Logger Pro does not print on macOS 13 and newer.

Using Interfaces with Logger Pro

Why is Logger Pro not connecting to the interface and reading "No Device Connected" in the toolbar?
Do Go Wireless products work with computers?
How do I configure the data-collect software to use an older sensor that does not Auto-ID?
LabQuest 2 FAQs
Original LabQuest Troubleshooting and FAQs (Full List)
LabPro Troubleshooting and FAQs
The LED on my Go! device or LabQuest Mini is not green. What does that mean?
SensorDAQ Troubleshooting and FAQ
How do I calibrate a sensor in Logger Pro?
How do I store the calibration for my sensor using Logger Pro?
Can I get data from multiple LabQuest App files into a single Logger Pro file?
Why does my DIY LabQuest project no longer recognize my LabQuest or LabQuest Mini?
Can I drive the Power Amplifier using Logger Pro?

Using Specific Sensors with Logger Pro

Extensive help and troubleshooting tips for each sensor is available on the individual sensor’s website:

Importing Data from Calculators into Logger Pro

Why can't I import data from my TI-84 or TI-89?
Why does the Import from TI Device in Logger Pro not show lists L1 - L6 as expected or show a square (□)?
I can't import data from my TI-84 or TI-89 via the mini USB cable on Windows 8.

Video Analysis and QuickTime

General information and troubleshooting for performing video analysis is available:
Logger Pro FAQs for Video-Related Features
Why are the menu options, "Movie, Video Capture, and Gel Analysis" grayed out in the Insert menu of Logger Pro? (Windows)
Why can't Logger Pro find QuickTime even after I've reinstalled it?
Logger Pro displays video as solid green

Conflicts with Other Software

When I attempt to download a cmbl file from a website all I see is a bunch of code.
Conflicts between Graphical Analysis 3, Logger Pro 3, and TI Connect for Windows
Palm Desktop software blocks Logger Pro or Graphical Analysis from using the serial port.

Issues with Pre-Logger Pro Version 3.5

If you are using a version of Logger Pro prior to version 3.5, information is available:
Issues with older versions of Logger Pro (version 3.4 and older)

Tips and Tricks

How do I use the Data Sharing feature of Logger Pro to send data to Graphical Analysis app via Wi-Fi?
How do I delete data points in Logger Pro or LabQuest App?
How do I export data from Logger Pro 3 to a spreadsheet program such as Excel or Google Docs?
How can I make a persistent meter that reads the maximum reading in a run?
How do I set global preferences on Logger Pro in Windows?
How do I combine sensor data collected in different data sets or runs into one data set in Logger Pro?
Can I open data files, such as Logger Pro or LabQuest files, in Graphical Analysis GW for iOS devices?
How can data from multiple Garmin tracks be plotted on one Google Map?
Why does my data table have holes (empty cells) in it?
How can I improve the appearance of graphs from Logger Pro when pasted into a word processor?
Which Braille Embossers does Logger Pro Support?

Videos of Logger Pro in action are at