emacs(cvs) serious breakage on kde4

[Neal Becker]

I've been running emacs cvs snapshots.  On the latest build, with
kdebase-4.0.5-3.fc9.x86_64

with emacs-cvs from 6/10/08, emacs does not draw it's window.  Only a shadow
appears!

I think these messages are relevant:
kwin: X Error (error: <unknown>[DAMAGE+0], request:
XDamageDestroy[DAMAGE+2], resource: 0x1a000e2)

Going back to an emacs built from 5/12/08 fixes the problem.