Comment 42 for bug 197163

Thanks Tom! You're a genius. I can confirm that this fixes the font issues. It also fixes issues with blocky fonts I had in printed output which I also had in Gutsy. That's a huge help.

I found deleting the libQt files in the mathematica distribution and linking to the libQt files (.so.4) in /usr/lib also works. If I didn't replace them, the printing box came up with Qt widgets rather than Gnome widgets. It also defaulted to printing to file rather than to Cups. Maybe Tom this will solve your printing problem.