Verified answer

You need to determine if this is hardware or software related...

For software, see: http://csci.info/safe

For hardware, make sure the unit is in a clean, well-ventilated environment, all cooling fans are operational and providing adequate defenses against over-heating.

About once every 6 months you need to "crack the case" and "give it a bath"... NO... NOT with "soap and water!"...

A can of compressed air and an anti-static cloth go a long way to keeping a machine running forever!