mbox2 on Vista not working when video drivers are installed!

[jkeijner]

hi,

I recently installed a clean vista 32 ultimate installation on 2 different machines with pt 7.4 an mbox2.
it seemed to work fine until I installed the video drivers.
one has a gforce go 7400 an the other an Ati radeon 2400hd.
Im got -6068 -9092 errors every time the interface changes (even on mouseklicks). when I update the driver to "standard vga graphics adapter" the errors went away. but thats not an accepable workaround sinds the display is corrupted then.
any help would be great

greetings,

Jur