I have made some gnuplot scripts which generates some postscript files which contains some dataplots. I can print these postscript files on my RH 5.x but not on RH 6.1. I can however print other postscript files on my RH 6.1 just not some of them I have generated with gnuplot. I can also generate a postscript file on RH 6.1, move it to a RH 5 machine and then print it. When the printing fails in RH 6.1 there are left 2 files called gs_XXXXX where the XXXXX are semingly random letters. What I think happens is that ghostscript crashes for some reason.
After upgrading ghostscript-5.10 to ghostscript-5.97 the problem seems to have disappeared.
What happens if you try the gs5.50 RPMs from rawhide?
This problem is fixed in the current tree. No idea what caused it, but it's gone.