BF3 Crash Troubleshooting... Tried everthing. Any ideas?

Okay so i have been playing BF3 for a while now without problems and recently decided to re-install windows. After installing windows i made sure c++ redis was up to date and so is .net 4... im running nvidia 306.23 drivers (same as before).

My hardware drivers are all up to date as well, and my hardware is as followed...

I7 3770K (OC to 4.5g)
Asus Z77 sabertooth mobo
Corsair Vengeance 1600mh (8g)
Corsair Force 3 120g SSD
Corsair TX850 psu
eVga GTX680 SC (not overclocked atm, but was when things where running ok)

No driver conflicts that im aware of, no BSOD, Good temps all round and plenty of power.

When i was playin b4 the re-install of windows, battlelog would fire up firefox and the game would run as it should no worries. But now it makes firefox crash straight up, but if i open firefox first it will work.. Once i try joining a server\game it seems to load up as per normal, then the screen goes black and an opaque mouse pointer appears in the middle of the screen and it crashes right there. I have to CTR+ALT+DEL to get back to desktop where i get the message Battlefield 3 has stopped working and it shut down the app.

I have borderland 2 which is working fine too.

Why would BF3 be doing this now? Also i forgot to mention that im a premium member and have all expansion packs installed as well.

I have read alot of forum threads and tried alot of stuff that isn't working.

Any help would be appreciated, thanks in advance.