Well, I finally got my internet issues fixed. Turned out to be something wrong with the new Firefox. Those of you with Firefox, if your internet connection seems to slow down considerably after updating (to version 3.0, I think it's called), there's a website you can go to that will lead you through steps you can take to get things back up to speed.
Click here.
Steps 1-4 worked for me. I also disabled AVG Safe Search 8.5 (Tools, Add-ons, Extensions). AVG is an anti-virus software you can download. I had read at MajorGeeks.com something about it possibly causing slow-down issues after updating (which I'd recently done), so I disabled it just in case. As well as disabling a bunch of plug-ins (Tools, Add-ons, Plugins), which I'll re-enable individually should the need arise.
It's so nice to be able to visit my favorite websites (MySpace, Facebook, blogs) easily again. It was beyond annoying when pages would take forever to load or not load at all. I actually had to use IE until I got Firefox fixed. *gasp* I prefer the look of Firefox to IE. Not to mention Firefox being safer to use than IE and more user-friendly.