The collected works of lessertx

Hi,
this thread is a bit old now but still relevant. I don't have the luxury to re-write programs. We have a lot of specialized software running on Centos5.5 PCs that we would like to remotely display on our Octane2. We are getting the same X window error. Is there any other workaround ?
I also noticed that it is indeed gnome (gtk?) applications that produce this error (mostly). KDE applications and programs like nedit, ImageMagick display, xeyes etc. work just fine.
Again, is there a solution to the gnome-problem ?

Thanks,

L.