MediaPortal goes from full screen to 1/4 screen wwhen switching inputs (1 Viewer)

[gormly]

MediaPortal Version: Most Recent
MediaPortal Skin: ALL
Windows Version: 7 x64 Ultimate
CPU Type: AMD Phenon II 3ghz quad
HDD: 2TB
Memory: 8Gig
Motherboard:
Video Card: ATI 5780
Video Card Driver: Updated

MediaPortal goes from full screen to 1/4 screen when switching inputs
I have a 4x4 HDMI matrix switcheer that allows me to send my signals from my 2 Tivos, Media Center and Xbox to 4 TV's

Whenever I switch from the MediaPC input to any other input and come back the MediaPortal is 1/4th the ssize it sstarted up as.
I initially thought it was due to the swwitcher going to otheer TV's but I tested it today without other outputs and it happeens when I switch over to another input on just one TV.

Is there a settting in MediaPortal doing this?
No other programs are affecteed, I tried XBMC and it does not do it... I prefer MediaPortal. The screen resolution stays the same, just MP changes.

I also did a fresh formatted windows 7 install with just MP and the lastest drivers to see if it was something I did and it behaves the same way.

I have tried many diffeerent resolutions 1980x1020 and all the way down to 1270x768 all seem to do the same thing.
any ideas???

 

[tourettes]

https://forum.team-mediaportal.com/operating-system-330/windows-7-half-fullscreen-71785/