I'm using Paint.NET V3.5.5 Beta Release build 3.55.3762.38843 in Windows 7 Ultimate 64 Bit with .NET Framework 4.0. When I save an image with transparency as PNG on the Save Configuration windows the "Preview, file size" switches between "computing:" and "computing: 100%" without ever stopping. Then when I save the file and try to view it I get a "Windows Photo Viewer can't open this picture because the file appears to be damaged, corrupted, or is too large." Opening the file through IE shows a broken link image (the red x). When I try to open the PNG with Paint.NET I get "There was an error opening the file."
I have tried this with the latest stable release as well as the latest beta.
Any suggestions?