Issue on PC windows 7 and XP

[jonxmass]

Hello,
Thank you very much for this very nice/efficient program. I try to extend my video set (2 Macs, 1 PC) for performing on a play, and I need 3 video players with xjadeo on each, sync with MTC/Bonjour.
Absolutly no issues with my Macs, but with my little ePC + win7 or laptop+XP, the xjadeo screen still blank, even the starting logo is not there.
Jack server + ffmpeg are installed and ok, mp4 are used and the picture format is well recognized.
Can you help me ?
Thank you,
Best (from france, sorry for my poor English)
JxM