Comment 4 for bug 241206

I am not certain if this is the same bug, but wihat I am seeing is; the screesaver wont start after I turn it off, play a GL accelerated game like FlightGear or SecondLife, then turn it on again.
The screensaver will not start after the set time. The screen begins to fade but then it goes back to normal and no screensaver. It does this continuously in serial fashion at the time interval setting for Gnome screensaver to start.
If I logout then in again the screensaver does start at the time I set.
I have also found it happens when I leave the screensaver turned on but start a media player like VLC, that has simulated mouse click capability to stop a screensaver starting. When I close this application the screensaver still wont start.
It has also happened before but not always, if I start playing a streaming video in flash player, inside a browser. When I do this I turn off the screensaver because I am not sure flash player has simulated mouse clicking, then turn it on again after.
I found that none of this problem happens if I login to another user account even if I leave the normal account still loaded but just switched user.
I am using Ubuntu 8.04 (latest updates), a Geforce FX 5700 with the restricted nvidia driver from Ubuntu repositories.