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I have been working on my laptop since morning and suddenly before some time my Alt-Tab functionalist stopped working properly.

Some times it switchs between the windows some times not , even if it switches, it only switches to the next window and does not show the preview of all windows.

Suddenly once in a while it shows previews of all windows but then too it switches only to the next window and goes away.

I logged out and logged and even restarted the machine but that did not help

I don't know that the hell happenned to Ubuntu to stop it working suddenly ,

I am so fed up to go to the touchpad now and then to switch windows :(

I have chrome , sublime text pidgin and termial windows open

If I am on chrome it switches to pidgin's conversation window after few alt-tab.

but then again aonly after few tries it switches back to chrome.

in between one in a while the switcher preview is diplayed for few seconds and disappers.

This same happens when I am switching between sublime and terminal.

In all its happening for all windows that are open.

I thing I noticed when I do alt + tab it mostly detects it only as tab

Any solutions?

share|improve this question
What would really help here is an example of the problem, something like: "I have the following windows open: X, Y, and Z. When I press Alt-Tab, I expect it to .... . Instead what happens is ... ." Otherwise, it's a bit too vague to know what exactly your problem is. –  Steve Kroon Sep 6 '12 at 7:21
This sounds much like a bug report and if so would be off-topic here. Any chance you installed CCSM or made a lot of customisations to your desktop? –  Tom Brossman Sep 6 '12 at 7:29
@TomBrossman I have installed ccsm long ago and have not done any heavy customizations, and it was working of lately untill recently it started happening suddenly. I am just clean bowled –  PriteshJ Sep 6 '12 at 7:32
@TomBrossman, I removed CCSM but still no luck :( –  PriteshJ Sep 6 '12 at 7:34
I asked about CCSM as it can customise Alt + Tab behaviour, try this question for how to reset Unity in case this is the root cause. –  Tom Brossman Sep 6 '12 at 7:35

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