I built my own computer with parts that I bought from www.newegg.com. After 5 months running fine the screen start losing video in about 15 - 20 minutes running.
Here are my list of my computer parts:
1. HITACHI 0A38016 1TB 7200 RPM 16MB Cache SATA 3.0Gb/s 3.5" Internal Hard Drive -Bare Drive