Hi Mac,

Thanks again for your reply. Im already using the latest (2010) Roland driver 2.0 64 bits for my new VS-100 Audio Device. As said I switched off all other drivers reported by the system including Onboard Audio which didnt help. I also tried to install a Generic Text Only Printer set as Default above my HP Printer to see if this could help but it didnt (was a hint I saw somewhere on the net). I also updated my ATI Graphics driver card to the latest version at the HP support site. As far as I can see now there are no other drivers to update, and besides that, all other drivers beside VS-100 are switched off anyway?

greetings,

Valentino