Have you seen this behavior before? I cannot resize or move or reposition the Radio stack window, ATC window, the Compass window or GPS window once they open to their default location in the cockpit. Interestingly, I can open the Kneeboard window and reposition it to another location in the cockpit window and I can resize it too. It is possible, but I am not absolutely sure, that this behavior started since I applied the FS9.1 patch. Help! Thanks,

If you have a registered version of FSUIPC, you should check your settings. There is an FSUIPC option to prevent the moving and resizing of FS Windows.Doug

Well, I'll be...... Thanks very much. As you know, and for the clarity of others, in the registered version of FSUIPC on the Technical tab is a box for "Stop cockpit Sizing and Moving". It appears this is checked by default as I did not invoke it. Anyway, I unchecked it and (drumm role please...) I can now move and resize my ATC, Radio Stack, GPS and Compass windows again - all is well on the planet again. Interesingly, I had been in FSUIPC looking for a answer but either did not see this invocatin or did not make the connection to a "window". Anyway, thanks for the help Doug - 'ya done good. Have a cold one on me :-)