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Title: Dangerous device
Review: Earlier reviews rated this highly for ergonomics but I found that as it's higher in front than the back you have to bend your wrist up in a very strained position. I had to make an angled tray to compensate but, as the ball is not secured, there's a risk of it falling out when properly angled to avoid wrist strain.It's software is disappointing & doesn't seem well integrated with Windows XP - unlike Logitech's Mouseware, the device only shows as a generic HID in Control Panel Mouse. Its pluses: the scroll wheel is very comfortable & having 4 buttons is good. Overall, not recommended - avoid if you have wrist problems.
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