Wonder if any one knows how to fix this issue. I recently bought&installed PMDG 777. I undock the CDU (for example) and it loads fine, but when I drag that undocked window into one of my other monitors in my home cockpit the undocked window goes black/blank. if I drag the window back to the main fs screen it loads fine there, just does not like to load on any of my other monitors. I have never experienced this before. in fact in a default FS aircraft it works fine, only in PMDG777.
I thought I might of messed up something in FSX, so I did a total un-install of everything I own, reinstalled FSX, SP1, SP2, FSUIPC4, and PMDG777. Still get the same results.
Specs:
Win 7 64bit (up to date)
2 x ATI R7 260X (latest driver package) running 1 monitor on 1 card (main monitor) and running CDUII and 2nd monitor on 2nd card
FSX is in windowed mode
8gb RAM