Linux X11 applications getting disconnected

[EforeZZ]

Hello,

I have a little problem with my X11 linux applications (Skype, VMware). I
run remote X11 server on Windows (Cygwin/XWin) and I'm getting problems with
Skype/VMware. They sporadically get disconnected from the X server while all
other native FreeBSD programs (KDE, terminals) keep running. Is there
anything special about networking in Linux programs running under FreeBSD?

Best regards,
EforeZZ