Run WoW with Dx9 instead of Dx10

I wonderd if anyone knows if you can run WoW on Dx9 instead of Dx10
I use Vista, Ati Radeon HD 3650 series ( Yes i know i should go W7 or XP. Slacking on Cash atm )
This is cause i get black screens now and then and it annoying in raids especially if raid wipes because of it. Like we did yesterday on Rotface

Help appreciated

[B00rz]

dont think wow even uses dx9 let alone dx10, prolly one of the main reasons wow runs so crap even on really good machines =p

Found the problem.. Somehow my webcam caused the problem. Lawl..