setup goes fine but when it strarts running i get.

[1/18/12 3:24:14 PM] Started                                                 
[1/18/12 3:24:14 PM] Connecting to: http://api2.bitcoin.cz:8332/             
[1/18/12 3:24:14 PM] Using Apple OpenCL 1.1 (Jun 14 2011 23:31:14)           
[1/18/12 3:24:15 PM] Added ATI Radeon HD 6770M (#1) (5 CU, local work size of 256)
[1/18/12 3:24:15 PM] ERROR: [CL_INVALID_WORK_GROUP_SIZE] : OpenCL Error : clEnqueueNDRangeKernel failed: local_size[0] (256) != required local_size[0] (1024)
[1/18/12 3:24:15 PM] ERROR: Failed to queue kernel, error -54     

please help.

I am currently forced to use RPCminer on my CPU instead of a GPU miner so it is a lot slower.