I installed Fedora 6 on my laptop this week and its been doing something very weird.. I belive this only happens when the computer is idle for more than a few mins.. But I would get a windows asking me to save a screenshot of the desktop (gnome-panel) and there would be multiple of them open, in the bottom taskbar.. THe computer would lock up, I could only use the mouse and nothing would work... So I uninstalled gnome-panel.
However that didnt really fix the problem. Now i get an error that pops up saying it cant find "gnome-panel" (i uninstalled it), and multiple of these error windows seem to open because tehre are many of them in the taskbar. The computer also locks up and im unable to open anything, do anything other than move the mouse.. I cant even do a "ALT+CTRL+F2"... So what could be causing it to try to take screen shots? And i think this only happens when the computer is idle for a mins and im not using it...

Any ideas how i can fix this? or what might be happening?

thanks guys!

Try Ubuntu

Or install KDE for your Fedora and switch to using it. Personally (and it is a matter of personal preference) I find KDE much easier to use and configure. (And the "Switch Session" option you get if you also change the display manager to KDM instead of GDM can be very handy at times.)

That -- that it's a "personal preference" matter -- said, you might find Mr. Tovaldis' comments about GNOME interesting. (That link is only one of many returned by Google.)
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More to the point of your question, what were you doing when the stream of "pop-up" boxes was displayed? I've noticed that a similar behavior sometimes occurred when a script was incorrectly rendered by my browser. (You said that the system was idle for a few minutes, but what tasks were still running? A running system always has something running. Open a terminal window, run the top command, and tell us what's shown as using resources when the pop-ups start to be displayed.)

OK -- though this is not the place for such discussion (poor 'maxcell'), I think both Gnome and KDE each have their distinguished public. Just a pity that the most complete one has the less aestetic qualities -- but you may live with that. So, to be complete, I would actually recommend Kubuntu!