I've been getting strange, erratic behavior from my optical mouse lately,and I'm wondering if anyone may have a clue: I usually use the highesttracking speed in the Mouse Control Panel. However, recently I've noticedthat often, after starting up and then a few minutes of activity, openinga doc, graphics file, or other application, the mouse will suddenly slowto a crawl. A check of the Mouse Control Panel shows the mouse trackingspeed is still set at the highest speed. And not incidentally, after theslowdown occurs, going into the Mouse Control Panel and setting the mousespeed to a slower speed REALLY makes it slow down! So the Mouse ControlPanel is still functional when this occurs. I haven't yet figured out ifthere's any special operation I do that triggers this. It seems totallyinconsistent.The other day, it never happened at all. I thought the problem haddisappeared somehow, but now the behavior is baa-aack.Any ideas? It's annoying as hell. I have to restart to get the fast mousetracking back.