Ubuntu Installation :: Minor Annoyance After Upgrading 10.04 -> 10.10?

i upgraded from 10.04 to 10.10 after a format, and i've been getting this annoying thing going on with my mouse pointer, where, whenever i move it, it initiates a loading animation, and after about a second, to a second and a half, it acts as if i were to click with the lmb, even if i didn't. this makes life difficult, because i have to be conscious of where i click, or if i'm typing something, it will cut me off in the middle, or open a link i didn't want to open, and all sorts of other erratic behavior. it routinely stops me from typing mid-sentence, stops videos videos, etc., and it's extremely hard to get used to after a decade of never taking notice of where i put my pointer, this is becoming a major headache.