Well, I was so angry, I deleted my harddisk, installed VDR (Linux), because there was a new distribution...
Then I realised (again) that I hate Linux.
Okay, I reinstalled Windows and GBPVR. It is still the best. ^^ Thanx for this sub!
I am still not finished with all this, but since my installation of gbpvr was very old, I hope it will work now... I'll write here if my problem is still existing.
Hauppauge PVR 350 - Nova-T USB2 - Intel 2800MHz? - 512 MB RAM - Windows XP - No Mouse nor Keyboard.