http://bugs.winehq.org/show_bug.cgi?id=31009
--- Comment #3 from cseba00 cseba00@yahoo.com 2012-06-26 15:30:51 CDT --- after upgrading wine from 1.5.6 to 1.5.7, drag and drop a .png file on mspaint, it displays a message saying that the file is not a valid image, or the format is not supported. This worked fine in every wine version I installed until now. Saving the file to jpeg was not possible though, until some recent versions, when it started working (showing the option to save as jpeg), I don't know if this has something to do or not. I'll run those regression tests when I can.