Somehow the client area of Regen ( 0.97D ) is 10 pixels wider and 8 pixels taller then indicated on my system ( Windows 7 + Basic Theme ) .. this occurs with each window size.
320x240 -> 330x248
640x480 -> 650x488
960x720 -> 970x728
Obviously this causes some ugly rendering artifacts / stretching.
To the Regen author .. are you already using AdjustWindowRect with the proper window style? In any case, hopefully it can be fixed
Window Size
Moderator: AamirM