I'm having a problem with the mouse courser in the game.
There is a certain lag from the moment the courser is on any button in the interface until the button changes it's color and become active.
In addition the feel is the the mouse control is laggy and sluggish...
did anyone experienced it ??

Hardware (default) or software? There is option in Option Menu to switch between two modes. Try other one and see if it helped. For hardware cursor mode mouse drivers must be "correct".

Turn off Vertical Sync if you haven't already.

using the hardware causes the lags, but the software cursor run verrrry slow if i choose to use it insted. Sufyan i've tried switiching the vsync , no sucess neither...