Dear GRX
I am reassured to hear that others have found difficulties with GrMouseWarp.
I find that (under Win32) with the Gr_default_graphics, I can get GrMouseWarp to position itself correctly by adding 50 pixels to each of the x & y coordinates. However, I am sure that a new universal constant of nature has not been discovered. Something is not right...
Also, I still can not get the mouse cursor to disappear.
Peter Williams