You may like to increase the default memory allocated for the IDEA app. via modifying the VM options located in:

<Install-dir>\bin\idea.exe.vmoptions

<Install-dir>\bin\idea.vmoptions

For example, if you installed the application in it's default location on Windows you may see something like this:

C:\Program Files\JetBrains\IntelliJ IDEA 6.0\bin\idea.exe.vmoptions

Below is an example of settings:

-Xms32m
-Xmx256m
-XX:MaxPermSize=128m
-ea

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