Hi,
I have installed Boinc 7.0.64 on W8 32 bit (not protected PAE/service), yet does not recognise GPU, see log extract below.
Any ideas?

04/07/2013 22:51:46 | | No config file found - using defaults
04/07/2013 22:51:46 | | Starting BOINC client version 7.0.64 for windows_intelx86
04/07/2013 22:51:46 | | log flags: file_xfer, sched_ops, task
04/07/2013 22:51:46 | | Libraries: libcurl/7.25.0 OpenSSL/1.0.1 zlib/1.2.6
04/07/2013 22:51:46 | | Data directory: C:\ProgramData\BOINC
04/07/2013 22:51:46 | | Running under account paul
04/07/2013 22:51:46 | | Processor: 8 GenuineIntel Intel(R) Xeon(R) CPU E5620 @ 2.40GHz [Family 6 Model 44 Stepping 2]
04/07/2013 22:51:46 | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss htt tm pni ssse3 cx16 sse4_1 sse4_2 popcnt nx lm vmx smx tm2 dca pbe
04/07/2013 22:51:46 | | OS: Microsoft Windows 8: Professional x86 Edition, (06.02.9200.00)
04/07/2013 22:51:46 | | Memory: 2.99 GB physical, 5.99 GB virtual
04/07/2013 22:51:46 | | Disk: 931.51 GB total, 901.28 GB free
04/07/2013 22:51:46 | | Local time is UTC +10 hours
04/07/2013 22:51:46 | | No usable GPUs found
04/07/2013 22:51:46 | PrimeGrid | URL http://www.primegrid.com/; Computer ID 403238; resource share 100
04/07/2013 22:51:46 | | General prefs: from http://mersenneathome.net/ (last modified 11-Jul-2011 10:43:27)
04/07/2013 22:51:46 | | Host location: none

Did you install the Tesla drivers from Nvidia? If not, do so first. The drivers that Windows installs lack the necessary CUDA and OpenCL parts that BOINC needs to see the GPU.

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Thanks Jord - that worked.