SLI Question

Ok, so I'm building a PC and I was going to have dual Nvidia 7800s so I got a SLI motherboard, but now I have changed my mind and want to go for a single 8800. I was wondering if a SLI ready motherboard would run fine on a single card and not get the video messed up. From what I have read I'm pretty sure it should work, but I just want to verify with you guys over here. 
Thanks
SHV*0151

Thanks
SHV*0151