New PSU and GPU installation, and now no Wi-Fi...

[supedaglup]

Last night when I was installing a new PSU I think I might have accidentally pulled out 2 thin wires, one black and one white. (Keyword: MIGHT) I haven't noticed them until I saw that they were caught on the PSU's wires, and I just dismissed it as some sort of unnecessary wires. When I installed the new PSU and GPU, my computer's built in Wi-Fi features were not working, so I suspected that the wires I might have pulled may be connected with the built-in Wi-Fi. Can anybody help me? And if the wires are useless, what might be the cause of the lack of Wi-Fi?
Here is a picture of the suspicious-looking wires so you can see it.

http://oi58.tinypic.com/2mx20lx.jpg

My computer is one of those Dell Inspiron black desktops, I'm not sure what model, but if it's important, I can provide it.

Thanks.

UPDATE:
I rearranged some of the cables and I got internet connection for about 5 minutes, but then when I closed the machine and I stood it upright, I slowly lost connection until I had none. This wasn't a problem before, and the room with the computer normally receives signal no problem, so I'm guessing it doesn't have anything to do with the white and black wires I mentioned, but something is still up with the Wi-Fi...

 

[Someone Somewhere]

Yup, those are antenna leads. There should be a rectangular PCB mounted to your motherboard that has a pair of round sockets on it, and a big white+black label.