Thanks to all for your help ! I looked into into the Informal Math font but the price seemed too high for me at that time. As for the mathastext package Axel mentions, I have tried it here on the iMac at the university : it works fine. I’ll try it this evening at home on the MBPro. I am still wondering why my preamble works on the iMac and not on the MBPro, when the TeX distribution is identical on both machines.
Thanks again, Yves -------------------------------------------------- Subscriptions, Archive, and List information, etc.: http://tug.org/mailman/listinfo/xetex
