New HD 2600XT will not allow Stand By (S3)

I installed a New Radeon HD 2600XT yesterday and tried to place my Computer into Stand By mode prior to going to bed. It goes into it blinks off for a sec then immediately comes back out.

All research has lead me to believe this a driver issue, but what do I need to download to resolve. (BTW: XP Sp3)

I installed all the latest versions, but apparently not the greatest.

On a side note:
The other night my computer went into standby mode by itself after the appropriate time. I woke it up and was able to put it back into stand by several more times. However after a restart since then it is no again not going into stand by.

Here are driver/cat details:
Driver Packaging Version 8.493-080512a-063030C-ATI
Catalyst® Version 08.5
Provider ATI Technologies Inc.
2D Driver Version
2D Driver File Path System/CurrentControlSet/Control/Video/{262305DE-2F84-48E2-8FFC-4B39962CEF69}/0000
Direct3D Version
OpenGL Version
Catalyst® Control Center Version 2008.0512.1133.18639
AIW/VIVO WDM Driver Version
AIW/VIVO WDM SP Driver Version

Any help is appreicated!

4 answers Last reply
More about 2600xt stand mode help
  1. Yo, I've had the same problem with my Sapphire 2600XT. After, and only after I upgraded to XP SP3, standby mode was kaput. It would standby/shutdown, but upon rebooting it would just hang with a black screen; No BIOS, boot screen, nothin'. Perhaps you could risk downgrading to SP2 (at the cost of a few security updates) to see if the situation improves. I haven't bothered, as I'm going to update my 2600 anyway.
  2. When I first installed, I only had SP2. Same problems then.

    I "upgraded" to SP3 to see if it would solve my problems to no avail.
  3. Ahhh. Odd. My problems didn't start until I upgraded. Sorry, perhaps a graphical upgrade is in order?
  4. Bump...
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