Another small bug fix release that should make everything stable and fun again:
• Win/Ruby: Fixed unhelpful Image loading errors
• Linux: Lots of configure & Rubygem fixes (thanks again here, Jamer)
• Win/Ruby: Fixed crashing or hanging Ruby process on exit after using audio
This makes the workaround DLL posted here earlier unnecessary.
On a side note, I included FreeImage.dll with the Windows gem for those who need exotic image formats, e.g. loading straight from PSD files during development. This works out of the box on all platforms now. Just keep in mind that you may need to ship FreeImage.dll along with your game if you use any non-system image formats in production.