OpenCL Build Error

[woolleysi]

I have reinstalled Windows 7 64bit(was previously 32bit).

Installed with standard Windows drivers for the Radeon HD 5750 card.

Downloaded Catalyst 12.4 drivers and installed (did not download and install SDK!).

Downloaded hashcat gui 0.5.1

Run oclExample400.cmd from the oclHascat-plus directory.

Still get the same error:

GPU-Loops: 64
GPU-Accel: 16
Password lengths range: 1 - 15
*** CAL version mismatch:
This OpenCL build requires version 1.4.879, version 1.4.635 installed.

That's about as standard an install as possible.

Any ideas?

Thanks.