I'm trying to get the GPU2 to work on a vista 64bit rig. I talked with warlord in another thread about the but thought I'd just start a new one for anyone having problems. Here is my log file.
Note: Please read the license agreement (Folding@home-Win32-GPU.exe -license). F
urther
use of this software requires that you have read and accepted this agreement.



--- Opening Log file [August 15 00:31:06 UTC]


# Windows GPU Console Edition #################################################
###############################################################################

                       Folding@Home Client Version 6.20

                          http://folding.stanford.edu

###############################################################################
###############################################################################

Launch directory: C:\Users\Jen!\Desktop\Folding@home-Win32-GPU_Vista-620
Executable: C:\Users\Jen!\Desktop\Folding@home-Win32-GPU_Vista-620\Folding@home-
Win32-GPU.exe


[00:31:06] - Ask before connecting: No
[00:31:06] - User name: Bob_white (Team 32407)
[00:31:06] - User ID not found locally
[00:31:06] + Requesting User ID from server
[00:31:06] - Machine ID: 2
[00:31:06]
[00:31:07] Loaded queue successfully.
[00:31:07]
[00:31:07] + Processing work unit
[00:31:07] Core required: FahCore_11.exe
[00:31:07] Core found.
[00:31:07] Working on queue slot 04 [August 15 00:31:07 UTC]
[00:31:07] + Working ...
[00:31:07]
[00:31:07] *------------------------------*
[00:31:07] Folding@Home GPU Core - Beta
[00:31:07] Version 1.09 (Fri Aug 1 11:46:54 PDT 2008)
[00:31:07]
[00:31:07] Compiler  : Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14
.00.50727.762 for 80x86
[00:31:07] Build host: amoeba
[00:31:07] Board Type: Nvidia
[00:31:07] Core      :
[00:31:07] Preparing to commence simulation
[00:31:07] - Looking at optimizations...
[00:31:07] - Created dyn
[00:31:07] - Files status OK
[00:31:07]
[00:31:07] Folding@home Core Shutdown: MISSING_WORK_FILES
[00:31:11] CoreStatus = 74 (116)
[00:31:11] The core could not find the work files specified. Removing from queue

[00:31:11] Deleting current work unit & continuing...
[00:31:15] - Preparing to get new work unit...
[00:31:15] + Attempting to get work packet
[00:31:15] - Connecting to assignment server
[00:31:15] - Successful: assigned to (171.64.65.20).
[00:31:15] + News From Folding@Home: GPU folding beta
[00:31:15] Loaded queue successfully.
[00:31:16] + Closed connections
[00:31:21]
[00:31:21] + Processing work unit
[00:31:21] Core required: FahCore_11.exe
[00:31:21] Core found.
[00:31:21] Working on queue slot 05 [August 15 00:31:21 UTC]
[00:31:21] + Working ...
[00:31:21]
[00:31:21] *------------------------------*
[00:31:21] Folding@Home GPU Core - Beta
[00:31:21] Version 1.09 (Fri Aug 1 11:46:54 PDT 2008)
[00:31:21]
[00:31:21] Compiler  : Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14
.00.50727.762 for 80x86
[00:31:21] Build host: amoeba
[00:31:21] Board Type: Nvidia
[00:31:21] Core      :
[00:31:21] Preparing to commence simulation
[00:31:21] - Looking at optimizations...
[00:31:21] - Created dyn
[00:31:21] - Files status OK
[00:31:21] - Expanded 44086 -> 244433 (decompressed 554.4 percent)
[00:31:21] Called DecompressByteArray: compressed_data_size=44086 data_size=2444
33, decompressed_data_size=244433 diff=0
[00:31:21] - Digital signature verified
[00:31:21]
[00:31:21] Project: 5016 (Run 2, Clone 37, Gen 2)
[00:31:21]
[00:31:21] Assembly optimizations on if available.
[00:31:21] Entering M.D.
[00:31:28] mdrun_gpu returned -1
[00:31:28] Going to send back what have done.
[00:31:29] logfile size: 0 info=0 bed=0 hdr=25
[00:31:29] - Writing 558 bytes of core data to disk...
[00:31:29] Done: 46 -> 85 (compressed to 184.7 percent)
[00:31:29]   ... Done.
[00:31:29]
[00:31:29] Folding@home Core Shutdown: UNSTABLE_MACHINE
[00:31:32] CoreStatus = 7A (122)
[00:31:32] Sending work to server
[00:31:32] Project: 5016 (Run 2, Clone 37, Gen 2)


[00:31:32] + Attempting to send results [August 15 00:31:32 UTC]
[00:31:32] + Results successfully sent
[00:31:32] Thank you for your contribution to Folding@Home.
[00:31:36] - Preparing to get new work unit...
[00:31:36] + Attempting to get work packet
[00:31:36] - Connecting to assignment server
[00:31:37] - Successful: assigned to (171.64.65.20).
[00:31:37] + News From Folding@Home: GPU folding beta
[00:31:37] Loaded queue successfully.
[00:31:38] + Closed connections
[00:31:43]
[00:31:43] + Processing work unit
[00:31:43] Core required: FahCore_11.exe
[00:31:43] Core found.
[00:31:43] Working on queue slot 06 [August 15 00:31:43 UTC]
[00:31:43] + Working ...
[00:31:43]
[00:31:43] *------------------------------*
[00:31:43] Folding@Home GPU Core - Beta
[00:31:43] Version 1.09 (Fri Aug 1 11:46:54 PDT 2008)
[00:31:43]
[00:31:43] Compiler  : Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 14
.00.50727.762 for 80x86
[00:31:43] Build host: amoeba
[00:31:43] Board Type: Nvidia
[00:31:43] Core      :
[00:31:43] Preparing to commence simulation
[00:31:43] - Looking at optimizations...
[00:31:43] - Created dyn
[00:31:43] - Files status OK
[00:31:43] - Expanded 44172 -> 244433 (decompressed 553.3 percent)
[00:31:43] Called DecompressByteArray: compressed_data_size=44172 data_size=2444
33, decompressed_data_size=244433 diff=0
[00:31:43] - Digital signature verified
[00:31:43]
[00:31:43] Project: 5014 (Run 4, Clone 29, Gen 2)
[00:31:43]
[00:31:43] Assembly optimizations on if available.
[00:31:43] Entering M.D.
[00:31:49] mdrun_gpu returned -1
[00:31:49] Going to send back what have done.
[00:31:50] logfile size: 0 info=0 bed=0 hdr=25
[00:31:58] - Writing 558 bytes of core data to disk...
[00:31:58] Done: 46 -> 85 (compressed to 184.7 percent)
[00:31:58]   ... Done.
[00:31:58]
[00:31:58] Folding@home Core Shutdown: UNSTABLE_MACHINE
[00:31:59] CoreStatus = 7A (122)
[00:31:59] Sending work to server
[00:31:59] Project: 5014 (Run 4, Clone 29, Gen 2)

This is not overclocked I could not get the 177 drivers to install so this is 175.19. Is that maybe the problem?

It would appear the 175.19's where a mixed bag on the 8800 series note this thread

This thread also address's the same issue 

Seems the 174xx and 175xxx cuda drivers will not work

It is SUPER EASY to modify NVIDIA's drivers to install on any card.  Do you want me to get an INF setup for your so you can install the latest 177 drivers on your card?

That would be cool. I have been on this computer all day trying to get it to work. Thanks man!

Got it up and running.

Excellent