Help :(

[Loveless]

So, I finally got the desktop but after two times it no longer turns on.

First I had a problem with the wireless adapter... but once I got that one installed properly it did turn on. Then after that I bumped it a little while trying to get it under my desk and it now no longer turns on.

I don't know if anyone can help me while not looking at the actual thing but thought I'd try anyway. If I can avoid sending it back that would be the best... I don't want to pay to ship it back and wait another two weeks as they don't do any cross shipping... I actually need the computer for work (which is piling up nicely).