OK, my secondary machine is a Dell Vostro 1400 laptop, XP SP3, 2 GB memory, Core 2 processor (1.4 or 1.8, forget which). I mainly use a USB mouse with it, as I HATE touchpads. In the last couple of weeks, I've ran into a mouse issue. it seems like most attempts to single-click on items, anywhere (in UO, on facebook, even in My Computer), result in effective double-clicks (about 60-70% of the time). 1. I don't have the single click option turned on in settings (first thing I checked), and if I did, that shouldn't affect things in-game, AFAIK. 2. The mouse appears to work fine on another (desktop) machine, that I let a friend use when I'm on my main desktop. 3. Even if I use the touchpad, the double-clicking for single still seems to occur, if not as often. Advice?