Forgive me, Pierre31209, ... but are you a CyberLink Technical Support representative?
I've been in communication with Guarev of CyberLink Technical Support (since November 1st) regarding the exact same problem that JosephMills79, Robert, and others have reported. My ticket ID is CS001306228. Guarev has had me take numerous screen shots of my registry and Event Viewer logs, in addition to have me send dxdiag reports, run CyberLink Cleaner tool, and load YouCam5_2931_GM6_Deluxe_YUC130508-01_R2 ... and yes, ... I've continued to send in the CyberLink Issue Reporter information. So, this is the first time that anyone has asked for my display adapter information. It happens to be driver version # 9.18.13.3165 from NVIDIA ... and it's up to date.
I failed to mention that the problem still exists and I, too, feel that I'm getting the runaround. I've been asked to install the same version of YouCam (see above) for the second time now ... and nothing has changed! CyberLink Technical Support has wasted a great deal of my time with uninstalling and re-installing the latest version of YouCam ... and I don't have any confidence that they are looking closely at all the information I've provided them at their request.
If you are with CyberLink Technical Support, please pass this on to the "RD team" ... and if you're not ... excuse me.