Never dealt with them, never heard of them either. Sounds like they're not very reliable. If it were me, I'd chalk it up to experience and try to fix the thing myself. Otherwise, you're going to be wasting your time with these people and be saddled with a computer that dosen't work.
Why don't you tell us the specifics of what problem you're having, we may be able to help you fix it. Stranger things have happened here...lol
I\'m already visualizing the duct tape over your mouth...