Beta 4:

- midline resolution support changed again (should be "good enough" now, better compatibility requires bigger changes and boring logic analyzer testing)
- centering was very broken in some cases (b2)
- only accept openal32.dll 6.14.357.22 or newer. (fixes possible crash at startup)
- missing sprites in some programs fixed, for example Leander and Battle Squadron (b2)
- added descriptions to file associations, fall back to user-specific (instead of system-wide) file associations if no admin privileges (was broken in Vista)
- added "Associate file extensions"-button to Paths-panel. Adds following extensions: .uae, .adf, .ipf, .dms, .uss. Removal not yet possible (it gets really tricky if other programs use same extensions and there is no API for adding or removing associations, only way is to access registry directly.. believe it or not.) Automatic .uae association removed. Better GUI in future. Maybe.