http://bugs.winehq.org/show_bug.cgi?id=21070
--- Comment #3 from Roderick Colenbrander thunderbird2k@gmail.com 2009-12-19 09:20:31 --- Nvidia drivers should be solid. I just tried powerpoint 2003 on my laptop (uses an ati radeon hd3450) and it works well even though ati doesn't accelerate xrender yet. Perhaps it has something to do with font rendering or so. There are some registry keys to disable font rendering using xrender. (see http://wiki.winehq.org/UsefulRegistryKeys) Could you check if disabling client side font rendering helps? It might also have to do with the fonts you have installed.