Vista - boot failure

I run vista 32 home premium. My Pc was having blue screen errors. I ran every test that my pc could run ad everything passed. I was still having crashes so I decided to do a system recovery hoping that it would fix the problem. After doing a back up and system recovery the pc restarted and reformated the disk for windows. Everything was fine for about 2 minutes after the desk top loaded. Anoter blue screen and when it went to boot i got a boot failure please insert disk and press enter. I created a boot disk because i do not have the software for my pc because it got lost in a move. Anyway the boot up disk booted to pc doctor. I did every test that it would do everything is passing but i still get the boot error. I would like to save some money and fix it myself but i really need some help. What other information do u need or what advice can u give me. The pc is only 1 year old

"Irisdragon" <guest@xxxxxx-email.com> wrote in message
news:08877cdd3bc6cb5506a5d76783b0f99b@xxxxxx-gateway.com...Lots of suspects here ...

Loose cabling/connections. Bad solder-joint on motherboard. Memory chips
(RAM) going bad.
*Video card* seated slightly crooked in it's slot, or simply getting ready
to die.

(On my older computer, it was my Matrox video card that went ka-put ...)

Can you call a vendor and talk to tech-support? Maybe get more clues that
way.

good luck,
Net Blue