Strange error

[Veeeight]

I'm using Dolphin rev 2960 x64 and with old graphics drivers was everything normal, most games worked fine but I've updated graphics drivers for Geforce 7950 X2 (it's dual core graphics working similar to SLI) and now I'm getting such error "Warning: incomplete rt" or something like that every time I'm trying to run any game. Games start cause I can hear the sound and I got FPS counter in top left corner but all screen is just black, I'm running Windows XP 64. And btw is there any problem for Dolphin to use dual core/SLI/Crossfie graphics cards? May this caused any problems?