Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I'm running Virtualbox on Windows Vista. I have a Microsoft USB mouse (it says "Comfort Optical Mouse 3000") with left and right buttons, and a mousewheel in the middle. If I press down on the wheel, it pretty obviously makes a "click".

I'm running Debian inside Virtualbox, and it's working great, but middle-mouse-click does nothing. Left and right click, and scrolling with the wheel, work fine.

Is there any way to get middle-mouse-click to work in my virtual machine?

share|improve this question

It depends on which desktop environment you're using, but look in your mouse preferences for a setting for "emulate three button mouse". I believe you should turn that off.

share|improve this answer
I've never seen such a feature at any layer higher than the X server, and I haven't turned it on there. The X server logs say it's using driver "/usr/lib/xorg/modules/input/", and "ImExPS/2 Generic Explorer Mouse: Found 9 mouse buttons". – Ken Apr 23 '10 at 18:21

It could be a configuration issue on the host, especially if you have MS Intellipoint software installed. Try the mouse settings in Control Panel.

share|improve this answer
What setting would I be looking for? I've never seen any middle-mouse-button related anything in MS Windows, except that IE can use it to turn on the funny scrolling mode (which works here). I certainly don't see any setting that looks like "unbreak my middle mouse button pls". – Ken Apr 23 '10 at 20:10
@Ken: with Intellipoint installed, the first tab of Mouse Properties lets you configure the buttons. The default action of the middle button is to open "Instant Viewer" (a bit like Mac Exposé), in which case the foreground app doesn't receive a middle click. – Hugh Allen Apr 23 '10 at 20:52
I've never heard of Intellipoint, and if it isn't part of Vista SP2 (and I don't see anything by that name here), then I don't have it. Do I need that for the middle button to work in apps other than IE? – Ken Apr 23 '10 at 21:58
@Ken: on the start menu it's called "Microsoft Mouse". You don't need it for the middle button to work. – Hugh Allen Apr 23 '10 at 22:23
OK, I definitely don't have that. Thanks for the idea, though. – Ken Apr 23 '10 at 22:25

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.