Eclipse android emulator doesn't close when 'x' is pressed

I just reinstalled the new version of Ubuntu, and afterwards eclipse + android sdk and AVD. Now, when I create a new emulator, after it loads, if I press the ' x ' button, both the emulator and eclipse freeze. Even if I close the emulator in task manag开发者_运维知识库er, eclipse still tells me that I haven't closed that emulator. I fix the problem by restarting the pc, but that can become frustrating after a while. Has anyone had this problem?

Thanks in advance.

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Yet not meet this problem. What's the version of your eclipse? You'd better use RCP eclipse for android development. The URL for RCP eclipse: eclipse-rcp-and-rap-developers