Ok, first off, here's my specs, it's a brand new computer, just got it for Christmas.

AMD 64 Bit 3200+ 2.25GHZ processor
512MB PC3200 400MHz DDR RAM
160GB HD 8MB cache 7200RPM
Windows XP Pro (had the service pack 2 but deleted it to see if it would fix the problem).
Cable internet connection through a router.
Limewire 4.2.6 Pro

Ok, so here's the problem...this has been happening ever since I got my new computer, but never happened with my old piece of crap computer, so it's safe to rule out the router connection. I can connect fine TO limewire, but when I connect anything else I have running internet related stops working. For example, Msn will sign out, webpages are viewable but only by clicking the go button about 50 times. Nothing comes up saying that the internet connection is gone or anything, and it will still say I'm connected if I check in my network connections. Even if I close limewire out, I have to restart the computer in order for my internet connection to become stable.

Aside from that downloading in limewire isnt going so well either. It sometimes won't come up with any results for really popular bands, and if I try to download more than one song at a time it's very unlikely for them to complete downloading. I thought I might just need pro, so I bought it, but the problem is exactly the same.

If anyone can offer any insight to this it would be greatly appreciated, I'm ready to pull my hair out, I've tried everything I can think of. Talked to the people that made the computer and they seem to think it might be a setting I have to change?

Thanks in advance if you can help....