This might be a software problem instead of hardware so putting here was a reasonable guess only.
For years I have used Logitech's Cordless Trackman Wheel with no problem. And this "no problem" situation has worked for a considerable time with my Win XP and my Firefox browser. Just today however, I have been noticing that sometimes (only sometimes!!) when I left double click on a desktop icon (be it a shortcut to a program or to my Firefox browser or my (rarely used) MSIE browser that I either connect normally or nothing happens. If I don't connect to program or browser, an immediate retry may work or may not. If I try another shortcut that generally works; if I come back to the first desktop shortcut, it then almost always works. A reboot did not do any good. I have also gotten the same behavior with a 2nd. Cordless Trackman wheel. Can someone give me some leads to what is going on--and possible solutions?