--- Operating System, Graphics card ---
win7 sp1 64bit
GT445m

--- Blender version with error, and version that worked ---
Error with 2.69.1 r60982
Working with 2.49B


--- Short description of error ---
Rotation type with Transformation Constraint.

--- Steps for others to reproduce the error (preferably based on attached .blend file) ---
Rotation Error when Source-max-value big than Desitination-max-value.
Please check the attachments. (rotate the green cube)

Thanks for you hard work.

Best wishes!
Yang