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If I lift my mouse a few cm from the desk and I move it the cursor still responds. Only when the mouse is lifted more than +- 5cm does the cursor stop to respond.

This is not desired behavior I guess. I want the cursor to only respond if the mouse is in contact with a surface. Is there a way to fix this?

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As the comments are indicating, this IS desired behavior. This mouse is too sensitive. Try a cheaper one. I'm curious why you're picking it up that much in the first place? – Shinrai Nov 23 '10 at 21:53
I use very low sensitivity when gaming, I pick up the mouse very often. This moving in the air causes confusion, unexpected behavior. – Tomasi Nov 23 '10 at 21:58
Just curious, what mouse do you use? I've used Razor, Logitech and Microsoft laser mice and never had them be that responsive. However, it still stands that your mouse is working as desired in my opinion. – Paul Nov 24 '10 at 14:03
Sharkoon FireGlider (3600 dpi). Really great value. This is my only complaint. – Tomasi Nov 24 '10 at 14:10
if you are picking up the mouse because you've run out of room on your desk to move it in a particular direction you might want to consider increasing the mouse speed in windows and/or increasing the sensitivity in the games you play. this way you can move the cursor further on screen with less actual movement of the mouse – Xantec Nov 24 '10 at 15:36

I believe this means that your mouse actually functions very well. You could use a surface that doesn't reflect a laser as well, which would be something with a darker color (absorbing some of the light, rather than reflecting it), if you really don't like this, but I don't think there is physically a way to turn the laser power down, so to speak.

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That or a sheet of glass or similar surface (plexi?) which allows the beam to pass through it and not reflect it back so much. – Blackbeagle Nov 23 '10 at 22:49

get a ball mouse? or a maybe a (ultra) low resolution optical? i would almost say that this behavior a is designed feature to help optical mice work on glass top tables.

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Get a mouse with a physical ball instead (if you can still find one).

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