gkrellm crashes with X Window System error

[Frank Bicknell]

output from the program at the time of the crash:

The program 'gkrellm' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadPixmap (invalid Pixmap parameter)'.
  (Details: serial 2367421 error_code 4 request_code 56 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

Don't know exactly what's going on when it crashes, though. It silently disappears.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: gkrellm 2.3.5-3
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Wed May 16 11:52:03 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
SourcePackage: gkrellm
UpgradeStatus: No upgrade log present (probably fresh install)