Monitor will never enter power save mode

[sebus]

Asrock ION 330 (but the same was on Aspire Revo).
Only thing in common is the ION
Latest drivers 186.18 Win7 x64 (but also tried the previous ones from 30 Apr 09)

No matter what powersave options I chose the monitor will never enter powersave
It was working as expected when Win7 was using its built-in drivers

Anybody else noticed this?

Thanks

sebus
PS
Suspend works fine by hardware button on the keyboard (but not software power option scheme)

[sebus]

This what fixed it:
Sadly is is know since:
Article ID: 911895 - Last Review: November 29, 2007 - Revision: 11.4

How did it get back into Windows 7?????????

Microsoft - Other hardware - HID Non-User Input Data Filter (KB 911895)

Installation date: ?02/?07/?2009 10:52
Installation status: Successful
Update type: Important
Microsoft Other hardware software update released in May, 2009
More information:
http://winqual.microsoft.com/support/?driverid=20264386
Help and Support:
http://support.microsoft.com/select/?target=hub

[nForcer]

Glad you got it fixed, sebus. Thanks for posting with a follow up.