AMD drivers problem in Wod

With 2.5s release I got a problem of monsters in WoD not Displaying along with very severe fps drops at the end of a fight and sometimes during it, I solved this problem by updating my drivers to the latest version and its been fine right up until 2.51s release.

Since yesterday however the problem has came back when I entered WoD, however I can't update my drivers this time as they are up to date.

Its a R9 270X 2048mb gddr5 and I'm using the latest drivers (omega 14.12) with windows 7 64 bit
Intel(R) Core(TM)2 Quad CPU Q8300 @ 2.50GHz
4.00 GB ram

ISP: Virgin media

Type of Internet Connection: Cable

Internet Connection Speed: 14Mbit/s

Date & Time: 24/02/15

Frequency: Always

Character Name: Sasha Sicoe

Race:Miqo'te

World: Sargatanas

Area and Coordinates: World of Darkness

Party or Solo: Full party

NPC Name: None

Monster Name:
Everything excluding angra mainyu and the first 3 chimeras

In-Game Time:

Steps: Enter Wod, play as normal, prepatch 2.51.