|"But I'm kinda debating on whether I should reinstall SP2,"|
I guess to me that question is kind of like will I own a pc or not...what I mean by that is if I cannot run the very newest, best and safest thing on my pc, then I would sell it and build new before living with "known problems" for the sake of ease. The few times I tried to accept such things, I couldn't sleep until I solved the problems and I have never lost the war, only an occasional skirmish! And I found that living with second best, eventually pointed out more problems than I ever knew were there.
So that said Sp2 makes your pc safe, and updates major problems. If your imperfect machine cannot run right with it, then I would "wipe and load" until it does, or "buy new", so I must answer you that way.
Personally I doubt you will have the problems once you have done the repair, but there is no way of knowing. One thing I might do and usually do do, before stepping into the "lions den" is make an image file in Acronis or Ghost, so if I err too much, I can return to before I started "playing". I wish I could do that with certain portions of my life, and may well devote the rest of it to figuring out how.