Android monkeyrunner crashes XWindows in Ubuntu

I have extensive test application written for monkeyrunner. There is about 30 use cases which takes about 20 minutes. It is pretty long, but I was never able to play it entirely, because whenever I am close to the end XWindow servers crashes - the console appear for few seconds and then the XWindows is starting from scratch.

I am using Ubuntu 9.10. The application is Android 2.3.2. I checked it on the Windows mac开发者_JAVA百科hine and it worked well.

Anyone encountered similar problem?

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Run the script with the DISPLAY variable unset.

$ DISPLAY= monkeyrunner script.mr

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Use MonkeyRunner.sleep(1) between every Event.