Ok so I have the wireless router set up and the comp that is wired to it works. My other comp I added a wireless card, the problem im having is that the program for the card isnt working right. It comes up with a screen that says has the choice to refresh, connect, exit, or manual setup. But the only thing that does anyhting is exit none of the other buttons work. It was working right for a bit but wasnt finding anything. The card is a linksys model wmp54g. Any ideas whats wrong with it?

Btw when I put it in the back of my computer it didnt exactly fit perfectly, i had to remove part of it, the metal thing that sticks out, was that a bad thing to do?

exactly what part did you remove and how did you remove it...