for some reason, every time i try and sign in, it says it can't connect to the server, and all this stuff about a POP server when i attempt to use Yahoo Mail..any advice?
Could you provide the exact error message you're receiving? It's difficult to diagnose without seeing what it's telling you.
Also, what are the POP settings you currently have entered? I know Yahoo did some messing around with POP servers after they went through their changes with SBC, AT&T, etc.