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EthoVision XT 19 - Troubleshooting: Import trials

Last updated: Jul 29, 2026

Hardware

This occurs when the Device ID of the hardware devices declared in the experiment settings (Device Configuration window) differ between the experiments. Or, if the names are the same but the devices ID have been mapped to different arenas. For example, when Lickometer 1 was assigned to Arena 1 in the current experiment, and in Arena 2 in the experiment you want to import the trials from.

Unfortunately there is no way to re-assign Devices ID post-acquisition. Always make sure to use the same names and mapping criteria when creating new experiments that you want to merge.

Troubleshooting: Quality Assurance (GLP)

Issues

  • I cannot start EthoVision XT (GLP restriction)
  • I cannot create new experiments, or acquire data with EthoVision XT
  • EthoVision XT crashes after opening a GLP log

I Cannot Start EthoVision XT (GLP Restriction)

A message appears:

You are not registered as a GLP user, so you cannot use EthoVision XT. Please ask a EthoVision XT user manager for help.

This issue could be caused by the fact that the user that has started EthoVision XT is not known as a GLP user.

  1. Restart the computer and ask the system administrator or someone with an administrator account to log in.
  2. Start EthoVision XT. Add users as GLP users. Make sure to add all the persons that are going to use EthoVision XT. See EthoVision XT user management.
  3. The administrator logs out.
  4. Log in with your account.
  5. Start EthoVision XT.

Alternatively, ask your system administrator to add your user account to the administrator group.

I Cannot Create New Experiments or Acquire Data with EthoVision XT

The File > New menu items and the Acquisition menu are disabled. When using the Quality Assurance module, it seems that users have been removed as authorized GLP users.

This may occur for two reasons:

  • The hardware key is not plugged in.
  • You reinstalled or repaired the application.

In the latter case the Quality Assurance user list is deleted. Ask your Quality Assurance user manager to add your user ID and give you the appropriate rights.

EthoVision XT Crashes After Opening a GLP Log

This occurs when using Quality Assurance experiments, after you click within the GLP log or when you click the Close button.

Do the following:

  1. Open the Windows Notepad and enter the following text:

    Windows Registry Editor Version 5.00
    [HKEY_CURRENT_USER\SOFTWARE\Microsoft\Internet Explorer\Main\FeatureControl\FEATURE_USE_LEGACY_JSCRIPT]
    "EthoVision.exe"=dword:00000001
  2. Save the file as [file name].reg on the EthoVision XT computer.
  3. Run the file.
  4. Click OK in the message that appears.

TIP: Files with extension *.reg are blocked by Windows and mail servers. Do not run REG files stored on network drives. If you need to send a REG file by email, enclose it in a ZIP file.

Source: EthoVision XT 19 Help, Noldus Information Technology

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