I'm getting great advice here so I hope I'm not abusing FT if I ask one more non-travel-related* technical question. My Windows 7 installation developed a frustrating habit a while back: the thumbnails that pop up when you hover over a stacked taskbar group time out far too quickly. I've learned how to maneuver the mouse to force a temporary reset, but I haven't found a fix.

My web searches have revealed a lot of questions from similarly-afflicted people but I've found no solution. Has anyone here had and solved this problem?

*Well, peripherally travel-related as this is on the laptop I use as my development and travel machine.