IDEA 8.0.1 hangs after medium usage time

Hello Florin,

I get the following issue while using IDEA for more that 1h: the main
window just freezes and remains coloured in grey, and I can only close
it by killing the process inside which IDEA runs. Do you have any idea
why this happens? I don't know how to collect more info about the
causes of this error,

because I do not know whether, and where, IDEA logs execution
information - I am new to IDEA. Maybe you can also help on this topic?

There should be a series of thread dumps generated in the logs directory
(.IntelliJIdea80/system/logs). Please post the latest thread dump from the
hang here.

--
Dmitry Jemerov
Development Lead
JetBrains, Inc.
http://www.jetbrains.com/
"Develop with Pleasure!"

I attach here the thread dump for all my day, I don't know exactly what to select from the logs... Hopefully you can find some useful info inside there...