As it stands my advice is to go back to what worked, unplug the unknown video card and System Restore to before you started.
I recently just updated my desktop with a nvidia graphics card from windows vista sp1 to sp2. When i switched on my computer it told me that it cannot find my graphics on the boot and sent me to bios screen. I did not know what to do there so i continued the boot up. Right now it is telling me i am using an intel(R) G33/G31 express chipset family. I do not know what to do now... Please help!
Here are my spec if you need it:
Intel core 2 duo cpu E6550 @2.33GHz (2 cpu's)
Was Using Nvidia graphics (cannot remember which one)
4 GB Ram
500 GB hard drive