wterm only refreshs if window is moved or resized

[Markus Jung]

Hi all!

After I compiled wterm 6.2.6 or 6.2.9 on my cygwin/winxp box I have the 
problem that I only see everything I type on my keyboard 
if I move the window so that it was redrawed. Has anyone a solution for 
this problem please?

Thanks,

Markus