I'm finding that a lot of my typing is ignored by IDEA build #9158.
I don't know if this is the same issue reported as "Can't Type in 9144 + Linux" (http://www.jetbrains.net/devnet/thread/278507) (I am using Linux, though).
I can't work like this, so I'm going back to #9013.
% uname -srv
Linux 2.6.13-15.18-smp #1 SMP Tue Oct 2 17:36:20 UTC 2007
% java -version
java version "1.6.0_10-rc2"
Java(TM) SE Runtime Environment (build 1.6.0_10-rc2-b32)
Java HotSpot(TM) Client VM (build 11.0-b15, mixed mode, sharing)
Hardware is x86.