a PDF test file (about 4 kB) of a test vector image which was created in Mathematic 6, displays just fine in Acrobat, but appears with grossly thickened lines if viewed in Illustrator CS 11.0.0 (all this on a MacBook under OS 10.4.11).
If anyone has the time and skills to open this short PDF file and give an opinion as to whether there is anything odd about its PDF coding that might cause this problem, or whether it must just be a bug in Illustrator 11, I'd welcome the information.
Email replies also welcomed.
[Note: This is a follow-on to a similar posting I made earlier with a different test figure, for which some respondents encountered the same behavior in Illustrator 11, while others found no trouble when it was opened in Illustrator 12 or 13, or versions prior to 11.]