I will double check the power supply.  It is several years old but was
not the cheapest nor most expensive when I bought it.  At 350 Watts I
don't think it is under-powered.  I am strongly suspecting it to be the
issue and will go after it next.

Alan

Shawn Badger wrote:
> It could be the power supply is flaky. If it is an older cheap one i
> would defiantly suspect it. If a capacitor is starting to go bad, it
> could be letting some AC into the system. One way to check is if you
> have a DVM (digital volt meter) set it to AC volts and put one lead on
> the black wire into the hard drive connector and the other led on the
> red and then the yellow connector. You should see some voltage, but it
> should be less than 1 volt.
> 
> BTW, if you switch it to dc voltage then you will see the 5 and 12 volts
> respectively.