Eclipse button clicks in Ubuntu 9.10 (Karmic)

Since upgrading to Ubuntu 9.10, I found that some buttons in Eclipse can't be mouse clicked any more. It's usually possible to click them using the space bar, but...

Many thanks to moma for posting a solution on Launchpad!

Start eclipse with
$ cd eclipse
$ export GDK_NATIVE_WINDOWS=true
$ ./eclipse

Or use this one liner:
$ GDK_NATIVE_WINDOWS=true $HOME/eclipse/eclipse