Macbook Pro Wireless Net Problem

Hi guys,
Ok so I’ve just bought a nice shiny new MBP but unfortunately I can’t get it connected to my wireless Internet!! :frowning:
I also have a Mac mini and it currently has no problems in connecting. Now basically what happens is I can actually see the wireless network in the available networks list and when I click it, it asks me for the WEP password (as it should) but again and again, it’s saying my password is incorrect. But I KNOW that it’s fine! It can’t be a mac problem because the mini works! :frowning:

Can anyone give me any clues as to what might be going wrong? Something strange with new MBPs? I’ve duplicated the Mac Mini’s settings!!

Thanks for your time,
Dave