Open the Control Panel, double click on the "Mouse" icon, then the "Pointer Options" tab, then UNCHECK "Enhance Pointer Precision" in the "Motion" section, then UNCHECK "Automatically move the pointer to the default button" in the "Snap To" section (if it's selected), then click on "Apply", then OK.
Hope this helps.
Dell Dimension 8200, 512 MB RAM, Windows XP SP2 + all other updates and patches, Dell 1702 FP, Brother MFC-420-cn, Mozilla Firefox and Thunderbird, CCleaner, Spybot, AVG Pro.
1. This system is almost four years old, and, until a couple months ago, we were still using the OEM mouse (a basic MS 2-button and scroll wheel). Then, it just dogged out. Seemed like it wasn't making proper contact, and cleaning did no good. Also, the cursor would occasionally scoot off-screen, all on its own.
We replaced it with another basic 2-button and scroll (a Belkin), and I was unsatisfied from the beginning. Oddly enough, after only two days, the Belkin exhibited the same rather sluggish movement, improper contact -- and the cursor still scooted off at times.
Roughly two weeks ago, we got a Microsoft Optical (2 button w/scroll), and under Device Manager it shows up as HID-compliant mouse, with the driver version 5.1.2600. This mouse works very well -- except that the cursor still sometimes scoots off on its own.
I've started to suspect that the scooting cursor has nothing to do with the mouse, but I'm at a loss as to what the problem is.
Last week, I did a clean install, and everything went smoothly. The cursor, however, still scoots when it wants to. So far, this is a minor problem, but I would like to correct it, if possible, before it gets worse.
Thanks to everyone.