Ok, I'm about at the end of my rope. I've tried everything from reinstalling my system to using the 'Broadcom STA' in restricted drivers (both before and after re-installing everything) to the ndiswrapper based solution found here: WIFI fix

No matter what solution I try, the end result is usually the same: I'll get my wifi light to turn on, and my system will detect the wifi card, but I can't scan or connect to any networks via network manager. Please please help. I will post any terminal commands for information as requested if anyone is willing to help me.