I HAVE A SONY VAIO VGN-FZ21E. MY SISTEM CRASHED AND I WAS FORCED TO REINSTALL VISTA HOME PREMIUM, WITH MY RECOVERY DISKS. AFTER REINSTALLING THE SISTEM BECOMED UNSTABLE. AFTER SOME TIME OF UTILIZATION THE SISTEM BLOCKS OR IS SHUTTING DOWN WITHOUT ANY EXPLICATION. I REINSTALLED AGAIN VISTA, BUT THE PROBLEM IS STILL THERE. WHAT CAN I DO?????
