A lot of you have reported a backtrace containing the following error, or something similar.
Diego Gaustein has opened a new bug report to collate the occurrences of any error involving "CompositeGlyphs". So far, we have a confirmed report from Diego himself(using an nVidia card) and myself(using an ATi). It would be helpful if the others who are experiencing this bug, could migrate to the other thread, so that we can figure out which package the error lies in :) It would also hopefully bring the bug in this thread to a conclusion.
The aforementioned bug report is here: