performance problem with 8.0.1 64bit

just upgraded to w8.

first thing I notice is that the mouse is ‘sticky/jumpy’ during playback. Enough to make it unusable. CPU usage very low.
no plugins loaded, just playing back a file.

no probs with w7 or cubase 7 etc.

what to do to debug ?

Mac or Windows? Did you try to reboot?
Did you try different audio driver buffer sizes?
Did you try 32 bit?


Windows 7
Tried different buffer sizes
Tried reboot
Didn’t try 32bit. I have 64 bit plugs I want to use

Did you try the MME driver?

Will try that

Using RME raydat