I came across this problem with the commercial Fluent preprocessor, GAMBIT 2.4.6, on Ubuntu 10.04. It worked previously with Ubuntu 9.10. Installing Chris Carlin's xorg-server - 2:1.7.6-2ubuntu7.3~ppa0 package solves the problem with Ubuntu 10.04.
I came across this problem with the commercial Fluent preprocessor, GAMBIT 2.4.6, on Ubuntu 10.04. 2ubuntu7. 3~ppa0 package solves the problem with Ubuntu 10.04.
It worked previously with Ubuntu 9.10. Installing Chris Carlin's xorg-server - 2:1.7.6-