I just recently got a new computer and tried installing LimeWire 4.45 but it won't connect. I thought the problem might be related to my firewall or router (also recently purchased) so I tried opening the right ports in my firewall and my router. Didn't work . So far I've tried about every solution having to do with firewall or router related problems. Then I realized that my other computer is using the same router and firewall yet it can run LimeWire perfectly so I thought that my problem may be software related being that computer is new (might be missing programs such as DirectX,etc.?). I can't use BitTorrent either . Can some1 plz help me?

edit: forgot to add that I'm behind a Windows XP firewall and using a Linksys BEFSR41 Router