Some HP notebook and laptop computers use a fingerprint scanning product developed by DigitalPersona that causes Rhino 5 to crash when using the Splash and About tool. This same tool causes button tooltip problems on flyout toolbars on Rhino 4.0.
In the V4 case we got on 21-Jan-2011 was a “HP TouchSmart tm2-2012tx”. It has HP SimplePass Identity Protection installed that installs applications from DigitalPersona. The application causes the problem is C:\Program Files (x86)\DigitalPersona\Bin\DPAgent.exe. To solve the problem, turn the DpAgent.exe *32 off from Windows Task Manager and rename it with a different name to prevent it running automatically when Windows starts.