OpenCL Build Error

[woolleysi]

When I run oclHashcat-plus I get the following error:

GPU-Loops: 128
GPU-Accel: 40
Password lengths range: 1 - 15
*** CAL version mismatch:
This OpenCL build requires version 1.4.879, version 1.4.635 installed.
Aborting.
Platform: AMD compatible platform found
ERROR: ERROR: clGetDeviceIDs() -1

I am running Window 7 Professional 32bit
Graphics Card is ATI Radeon HD 5750
I have installed Catalyst 12.4 drivers
I have installed AMD-APP-SDK-v2.7-Windows-32.exe

Any ideas?

Thanks