Hi! I'm writing this post for a little help, first sorry for my english but its my first time writing a post in english. I have a PROBLEM with my PC, yesterday ist suddenly stop to send the video signal from the video card, I think It may burn but there ist no signal of it, I try with the integrated video and the rest of the PC its fine, but the video card does not apear in the device manager. This morning when I turn on the PC the card was online again, but when I have to reboot the video signal disaappear again, I think it may be a problem with BIOS but I install the newest version for my motherboard and the problem is still there, also uninstall and reinstall the driver but it didn't work. Please someone help me

Specs:
Motherboard: Biostar GF7050V-M7
Processor: Intel PentiumIV 3.20ghz, 2Gb RAM 667Mhz
PSU: EQQUS 750W
Video Card: XFX GeForce 8600gt
HDD: SAMSUNG 80Gb If it WORKS intermittently it's possible it's not seated properly...
Remove all power ; remove the card physically and re-seat it...make sure to use the hold down screw as well as this INSURES a good ground.
Power up and re-install the vid card drivers from the ORIGINAL CD that came with it.
Good Luck !