Two vid cards, how do I set my PC to use one over the other?

[terzaghi]

I have 2 7900s in SLI (Well SLI is disabled for EQ2).  Lately I have been having graphics glitches and I believe it is my video card.  My wife has the exact same setup and she has no problems whatsoever.  Anyway, until I decide how and when to replace the card, I thought, "Hey, I have 2 cards in there, can't I just use the other one?"  So, can anyone tell me how to do this?  I know enough to be dangerous, and I am definitely not afraid to open up my PC.  Basically, I want to disable 1 card specifically, and I would like to do this permanently.Thanks in advance!

[Vodr]

<p>Open case,  take SLI cable from vid card,  remove power cable from vid card, yank video card and put it in a box?  Really the easiest way if you have something acting up.  If that works well swap it with the card that's in the PC to make sure it's not a slot issue on the motherboard.</p><p>Upgrading drivers generally never hurts either.</p>

[terzaghi]

I did say I wasn't afraid to open up the PC, I just don't want to.  But I suppose you are right, that would definitely work.  Thanks!OK device manager disable a video card, almost forgot to plug in my monitor to card #2.