Paint.NET 3.5.3 Beta 1

* Fixed a mismatched file name issue with the File->Save dialog in Win7/Vista. This issue is still present on XP but cannot be fixed.
* Fixed DirectDraw Surface (.DDS) file format support for CPUs which do not have SSE2 (Pentium III, Athlon XP).
* Fixed some crashes which were actually supposed to be "out of memory" error dialogs (without a crash!).
* Fixed a race condition with the New Image, Resize, and Canvas Size dialogs. If you typed very very fast you could get it to crash by typing a negative value and immediately pressing OK or Enter.
* Removed splash screen.