Postagem original de: oldturkey03 ,
Sergio, does not sound like a hardware problem but more like a software issue. You could try to reinstall your OS or set your BIOS to boot from optical drive or USB port. Then get a life copy of any LINUX program (I prefer Puppy Linux) and see if your system boots and runs okay. IF it does, you know it is a software error. If it does not, you are looking at hardware, possibly a bad video card. Hope this helps, good luck.