I am receiving the following error when printing to our efi rip from x5. The problem does not happen in x4 any help is appreciated - Error: stackunderflow; OffendingCommand: astore ]%% Stack: [-null- -null- -null- -null-] %%[ Flushing: rest of job... this is a simple poster with no variable data
http://atrey.karlin.mff.cuni.cz/~milanek/PostScript/Reference/PStrID1.html
Not that is will help much. You really have to work with this from the document level.
I had a similar problem. It turned out the fonts were corrupt and if I converted the font and images to bitmaps it printed fine. It's not the best solution, but it can help. Otherwise try converting the fonts to curves.