I’ve been noticing since upgrading to Leopard last week that PDF’s that are made using LaTeX do not always look right in Preview. Here’s the same PDF made using LaTeX (TeXShop, to be exact), opened three times in immediate succession using Preview (click to enlarge each):

The third one (rightmost) finally looks like it’s supposed to, but the other two have this strange-looking font substitution for text, and the math is just completely out of whack.

Again, this is the same PDF opened up, then closed, then opened again right after that, then again. No additional LaTeX builds were done. Also, the PDF viewer that comes with TeXShop had the same problems with fonts.

Anybody have a thought as to what’s going on here?