I'm running Idea 8 final on Ubuntu 8.10 with java 1.6.0_10 and it is complete unusable.
Since I upgraded Ubuntu I was not able to use lastest EAP versions neither final version, scrolling takes too long, i.e. navigate to method (ctrl f12) on a big class and you see editor scrolling in "slow motion"
Idea 7 is also less performant but not as much as Idea 8
Anyone has the same problem?