I have to reinstall the 0.19g app so I might as well try some new drivers. Installed Boinc 6.10.4 and removed the GPU app for the test which at the time I did not know was for 32 bit only. So I might as well play around with the configuration and maybe some good will come of this if the new drivers work better. If not it will be 9.5 again.

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link for the 9.9 download, just expand the appropriate fields

http://game.amd.com/us-en/drivers_catalyst.aspx

I don't suggest the 6.10.4 route, the work preempt bug bit me hard and resulted in a BSOD.

I went back to 6.10.3.

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9.9 is working great so far. Vista64 4850 && 3850. Hopefully it fixes the slight VPU-reset issues I have been having with 8.12.

Going to keep using the Catalyst 9.9 driver. Changed Boinc version back to 6.6.20, I used 6.10.4 with the Catalyst 9.9 driver most of the day, 6.10.4 would not keep the GPU app running it keep waiting for CPU apps to finish and then the GPU app could have its turn.
Edit: I believe the units are running faster with the new driver.

9/12/2009 11:29:58 PM Found app_info.xml; using anonymous platform
9/12/2009 11:29:58 PM Processor: 8 GenuineIntel Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz [Intel64 Family 6 Model 26 Stepping 4]
9/12/2009 11:29:58 PM Processor features: fpu tsc pae nx sse sse2 pni
9/12/2009 11:29:58 PM OS: Microsoft Windows 7: x64 Editon, (06.01.7100.00)
9/12/2009 11:29:58 PM Memory: 5.99 GB physical, 11.98 GB virtual
9/12/2009 11:29:58 PM Disk: 931.51 GB total, 708.62 GB free

9/12/2009 11:29:58 PM Version change (6.10.4 -> 6.6.20)

Card is a PowerColor HD 4850

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