Rbox 32 ghs problem

[anjr00]

Hey, I just recently was given two of the Rbox 32 ghs miners by a friend.  One of them mines perfectly and is currently mining Mazacoin.  I am having a problem with the second unit.

When I plug the power in, the red light comes on for a few seconds and then goes back off.  There is a screeching noise emitted from the unit when the light goes off.  I have tried switching power supplies, and it does not change anything.  When I plug the unit into my computer, it disconnects every few seconds. 

Has anyone ever had a similar problem with these units?  I don't want to drag my Block Eruptor Cube back out and heat the house up, but I may just have to if I can't figure this out.

Any suggestions?

[Meech]

I don't know what the screeching would be.  But the 2 I had would do the same thing with the lights being red.  I just grabbed a new driver each time and that solved it for a few weeks.