Can't log in...

OK, here's the dealio. I open up GW, play it for a bit, everything is running fine as normal. I quit it for like a few mins because I had to grab dinner. I come back and open up the program. It sits on the log-in screen for ages, without loading the right hand side box, and when I put in my password, it sits on "Connecting..." for ages, and then decides to tell me that it can't connect to any log-in servers, which is probably due to a routing issue [NetErr=58]. I've tried reconnecting to our ISP, restarting the computer, all that junk, but no results.

Any ideas? I really wanna play GW :P

I would guess a heat problem since you said it happened after you left it and came back. Add some fans, cooling systems or open the case up and put a small fan to cool it and try playing and see how it runs.