[jitter] directX 10 and jitter??

Hello
I'm going to upgrade my machine for openGl tasks on multiply monitors.
Plan to get better grahic cards (at the moment there are 2 Nvidia GT7600).
Checked the forum, but did not find much specifically about DirectX 10.
So few questions:
Is directX 10 supported by Jitter? 
Are  not there some other limitations.
I've tried a while ago on another machine Nvidia cardS with DirectX 10 (CLUB, 2 videocards) and immediately QT movie have crashed MAX.
I did not had time to check it, but older cards with direct X 9 worked fine.
Also thinking about Windows 64 and more then 2 GB of RAM. Any recommendations would greatly help.
thanks ar advance
Alex

Windows XP SP2, AAMD Athlon™ 64 X2 Dual-Core, Jitter 1.6.3

--
soma!=sema