When I'm trying to load any JPEG's to the program by clicking the plus button in the "New HDR image" wizard, I see the same message box on the screen. It states: "Loading Error: ERROR loading <name of="" the="" file="" here="">".
OS: Windows XP SP2 32-bit
Version of the program: 2.3.0-beta1
I hope, this report will help you a little bit to make the program more reliable and finally defeat all the commercial HDR imaging software. Good luck!