🚀 go-pugleaf

I have just installed the MKS Toolkit and am using the korn shell which comes 
with it.  I have set up a pif file to start a ksh in a window.  The first one
works fine when invoked sh -L.  But, when I start a second, instead of start-
ing in the window it goes full screen.  This also happens if I start a DOS
window and invoke sh -L from the command line.  The window turns full screen.
Has anyone else seen this and come up with a solution?  

Please e-mail responses.  Thanks in advance.