I have Vista Home Premium, fully updated. I'm using a Dynex wireless USB mouse on a Dell Inspiron 1720. It was working fine until I was looking through the mouse settings and I clicked "Snap To" to see what it was all about. Not liking it, I turned it off. But it didn't turn off. It turns off on my touchpad, but not on the external mouse. I tried restarting the system and taking the batteries out of the mouse. When that didn't work, I uninstalled the Dynex software. When that didn't work I uninstalled the drivers and the device itself, then reinstalled the slightly newer drivers from the Dynex website. Still nothing. This makes me think it's an issue with Vista. Any ideas?