Graphic Software Glitches

Are you using a well known graphics software and have come across a glitch? You can post it in here.
There is one thing I have found in Corel 12 that I'm having problems exporting PNG files as transparent. In Corel Photo Paint I can't even get it to work. In Corel Draw I only have one way I can go about doing it, the other way creates a very fuzzy image.
Have you found that software makers put out updates for glitches or do they not care if they're on a newer version now?