anges since beta 5 Improved OpenCL error handling with more useful error messages. The GUI will pop up a dialog if initialization fails. Resizing the board window to the minimum no longer crashes the program. The GUI version now runs the engine at normal, not lowered priority. This can improve responsiveness in some situations and avoids false hangs if another program is pegging the CPU. Small visual fixes to the settings window. Internal cleanups and changes to thread handling aimed at working arounds bugs in AMD's OpenCL drivers.