Frequently Asked Questions

There's a chance that someone has already asked the question you have in mind, and that it has been answered. Before you submit a question, we encourage you to search for it. General search is located below along with links to Contact Us.

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Frequently Asked Questions

There's a chance that someone has already asked the question you have in mind, and that it has been answered. Before you submit a question, we encourage you to search for it. General search is located below along with links to Contact Us.

Polygraph Questions


For what operating systems is the LXSoftware software available?


What do I do with a corrupt file?


When I create a new question list why does it sometimes say I have an incomplete question list when I try to save it?


How do I start a new chart in a series?


How do I format an MGQT test?


Why does my EDA component sometimes display a flat line?


Why does my cardio always drop off the bottom of the chart when recording?


Cannot find Data Acquisition Subsystem (DAS).


How do I get my test questions to show on the final report?


Can I modify the final report template?


I just received upgraded software, what has changed from my last version?


For what languages is LXSoftware available?


Why is the 'Print' button grayed out in the print charts window?


I cannot see the start button, question text or other controls on my LXSoftware.


How do I get LXSoftware updates?


I can't open PF files from a CD/DVD.


How do I open an zipped PF?


LXSoftware Error Message: "The PF Directory name is not valid."


The number of samples in Exam x Chart y deviates from the expected number of samples.


Is LXSoftware backwards compatible?


My printer is not listed in the LXSoftware Preferences, how can I print?


How do I switch back to the legacy question editor?


I get an error message when sending email through LXSoftware: "Send Mail failed to send message."


LXSoftware gives an error message while fast-forwarding an audio and video file.


How do I fix a, "PF Directory name is not valid" error?


Why is my audio (or video) missing from my chart?


What options are available for upgrading LXSoftware?


Why is the video portion of the LXSoftware failing to run?


I accidently changed the LXSoftware language. How do I reset the language to English?


I just installed LXSoftware; what is the User ID/Password?


How can I score a chart so it will show the score when it is emailed?


How often should a computerized polygraph system be calibrated?


I have a high resolution (3k+) display. Certain aspects of LXSoftware are difficult to interact with when displayed at that range. What can I do to remedy this issue?


I received an error message stating "this version of PolyScore has expired." What should I do?


How do I properly use (score) the RLE and PA tools?


Instructions for uninstalling LXSoftware PDF Printer before upgrading to LXSoftware 11.6 or 11.6.1


What is the DAS Serial?


I updated my LXSoftware to 11.7.0 and I receive an "Attempted an unsupported operation" error when creating my Final Report.


What is the United States Polygraph System Export License Law?


I purchased a used Lafayette Instrument polygraph system from a 3rd party. Can I still receive product and software support?


How do I clean/disinfect my polygraph equipment?


How to turn off or uninstall OneDrive


How do I import/export a template to another location?


How do I configure the Masseter Headset System?



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