My computer just wont let me use anything that has to connect from my desk top to the internet.

I can use internet explorer and that's it!

Anything else, fire fox, skype, aim, oovoo, even games, none of that stuff works.

I thought it was my modem but I have another computer hooked up to the same one and it works just fine. Its only mine. This has been the case from the day I got this computer. Even if I turn off all security setting this still happens!

My computer a windows vista and I have had it for only a year.

PLZ HELP