Noldus Knowledge Base

Check out detailed explanations on how to make optimal use of your Noldus installation. You can filter on the product you’re using. Looking for quick answers to common support questions? Check out our FAQs

Knowledge Base articles - All products


How do software-based and hardware-based licenses compare?

The Observer XT 16, EthoVision XT 17, and FaceReader 9 offer new software-based licenses which replace the hardware license key (dongle) required in previous versions.

Related to All Noldus Products

What's new in EthoVision XT 17?

EthoVision XT 17 updates drivers, adds new options for licensing and trial control, gives new display options in the visualizations, and more.

Related to EthoVision XT

Connecting a Basler camera

Basler cameras are the most common camera used with EthoVision, and may also be used with Media Recorder.

Related to All Noldus Products

Windows 10 power settings for EthoVision XT

Disabling sleep/standby and fast startup will prevent issues and improve performance.

Related to EthoVision XT

Reinstalling the Picolo Alert drivers for EthoVision

The Picolo Alert is the framegrabber most commonly used for analog cameras in EthoVision XT 15. Reinstall the drivers if it has ceased to work after a Windows update.

Related to EthoVision XT

Reinstalling the Picolo Diligent drivers for EthoVision XT

Reinstall the drivers if this digitizer card for analog cameras is not recognized in EthoVision XT 4.0-10.0.

Related to EthoVision XT

Moving or Relocating the CatWalk XT Walkway

How best to prepare the CatWalk XT Walkway for relocation depends on the scale of the move – just down the hall to another room, or to another facility possibly far distances apart.

Related to CatWalk XT

Installing EthoVision XT 17.5

Starting in EthoVision XT 17.0, EthoVision is too large to install from a single file. The download is provided as a zip file (compressed folder) which must be extracted to a folder before installation can proceed.

Related to EthoVision XT

EthoVision XT Settings are Locked, Unable to Modify

Once data has been acquired in EthoVision using a specific profile (Arena, Trial Control, or Detection), they become locked from changes (red arrows). You can duplicate these profiles and edit the new copy.

Related to EthoVision XT

CatWalk XT classified footprints are grayed out

Footprints that were previously classified/labeled show up in Classification, but some/all are grayed out in Run Visualizations and Run Statistics.

Related to CatWalk XT