Progam still left in task bar?

Hi all,

When I preview a screensaver from the desktop settings and then move the mouse to stop the preview, there is still a program icon (not quick launch icons) left in the taskbar called screen saver (this should normally disappear). This happens each time I click preview and I get the same problem when I view a video from a music single cd.

I am having this problem with two computers running Windows 98 second edition. Is there some kind of patch available to stop this or is it a graphics related issue?

Please help

Thanks all