On Ubuntu 8.0.4, the Idea editor (versionx 8.1.x and 9 EAP) randomly seems to no longer receive keyboard input, but the pop-up windows still can. I am using the 32-bit Sun JDK 1.6.0_13. The only way to fix the problem seems to be to restart the X-windows server. Is anyone else seeing this behavior? Does anyone know of a fix?