Mouse pointer jumps to lower right corner of screen when using 'e' to edit box in x-client

[svenn71]

I am using both MobaXterm and vcxsrv on windows to connect to linux for editing with xcircuit and I note that whenever I try to modify points of drawing elements with 'e' keyboard shortcut, the pointer jumps to the lower right corner of the screen. (Xcircuit is maximized). This doesn't happen when working directly on the linux workstation screen so I guess it is somthing in the interaction between the remote and the host.