Texture filtering(?) bug

[snobaste]

I recently updated to the newest Omega Drivers (based off of the ATI Catalyst 7.10), and have been getting a really strange error with textures when I have post processing effects on.


Game without Post Processing


Game with Post Processing

It seems almost as if, when Post Processing is on, the textures become 16 bit. This has me completely baffled, and would like to know if there is any reason for it, and if there is a remedy.

System Specs:
Intel Core 2 Duo @2.0GHz
1GB of 667MHz DDR3 RAM
ATI Radeon X1600, 128MB of GDDR3 texture memory, clocked at 445 Core, 500 memory.
Windows XP Home, Service Pack 2

Thanks,
Sno