XP Sreensaver stops working after first use.
This is now starting to really drive me round the bend, but over the last week or so I've noticed all the PC's in one room no longer run the screen saver after it's initial activation.
If I boot the PC's, after the time out (10 minutes by default), the screen saver will activate as normal. Disturb the PC (wiggle the mouse or press a key) and it deactivates as normal. However from then on it no longer activates again, and the monitors no longer go into power saving mode either.
I've sat and watched them and noticed at the screen saver the time out there is a very slight flicker on the screen as if Windows is trying to activate it, but fails for some reason.
I've checked Control Panel Display settings applet and the default Windows screen saver is selected and I can preview it. I've also checked the HKU\.DEFAULT\Control Panel\Desktop reg keys and everything seems to be there and set correctly.
Anyone got any ideas?