http://bugs.winehq.org/show_bug.cgi?id=9715
--- Comment #14 from Austin English austinenglish@gmail.com 2008-04-26 18:26:22 --- (In reply to comment #13)
This change had to be reverted because too many people were setting DPI to crazy values and then getting stuck.
Perhaps 200 would be a safe max value, though.
A warning like the one I posted to wine-devel or one detecting a DPI > 150 then popping up a warning may be a better compromise.