Crossfire Client File Corruption

xOSK

After installing a video driver update, I first got a "Instruction at 0x00 referenced memory at 0x00. The memory could not be read (not the same exact numbers but similar)" problem. After uninstalling and reinstalling my video driver, I got past that problem, but now I have the problem "Client file corruption detected, Closing game client.".

Solutions I've already tried:
Uninstalling and Re-installing Video Driver
Updating Video Driver (This seems to be the source of the problem)
Uninstalling and Re-installing the game
Re-downloading the setup and re-installing
Deleting the Z8Games Folder
Uninstalling the Game and Deleting the Z8Games Folder


Computer specs:
Windows 7 Home Premium 64-bit SP1
Intel Core i7 2600
16 GB of DDR3 Memory
Pegatron Corporation Motherboard (2AB5)
AMD Radeon HD 7570 (Dual Monitor Setup)