[oXygen-user] Losing keyboard input on Linux

Hello, so I regularly lose keyboard input when running Oxygen on Linux. cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=8.04 DISTRIB_CODENAME=hardy DISTRIB_DESCRIPTION="Ubuntu 8.04.2" java -version java version "1.6.0_07" Java(TM) SE Runtime Environment (build 1.6.0_07-b06) Java HotSpot(TM) Server VM (build 10.0-b23, mixed mode) I can often get it back by opening a new editing tab and typing into that then going back to the tab I was editing. Anyone else have this or know a solution. Thanks, Dave.