Negative Positive
Title: No Windows-7 64bit support
Review: The the trackball does not come with software, you have to download it from their website. The software comes with a six page PDF doc with instructions on how to install this on Windows 7 64bit. I printed these out and followed the to the letter, it will not install because Kensington does not have a digital signature on their own drivers, which I find somewhat concerning.DO NOT BUY THIS IF YOU RUN Win7 64bit!
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