Out of the blue, I'm getting a "Computation Error" result on dozens of WU's after a second or so of compute time. The common error reported in STDERR_TXT appears to be the following:

Starting WU on GPU 0

main integral, 640 iterations (1600x1400), 3 streams
predicted runtime per iteration is 123 ms (33.3333 ms are allowed), dividing each iteration in 4 parts
borders of the domains at 0 400 800 1200 1600
1, integration, Stream Allocation : Failed to create Buffer
Kernel Execution : Uninitialized or Allocation failed Input streams.
Stream Allocation : Failed to create Buffer

This is the stock ATI app 0.23 running on an HD5870. Task Manager shows gigabytes of free RAM.

A quick check of results others are submitting for the same WU's shows they don't have this problem.

Any ideas?

Check the GPU memory?

Buy a buffer at Wal-Mart? :)

Other than that my mind is unable to make a buffer ...