Client Juian Gomez had good video except for s-curve
distortion of lines toward edges of screen. Found exact
model on list (Mag DX 715t). Used documentation and monitor
controls to try to adjust, no success. Thought it might be
sync prob in monitor, but worked fine in Windows. Freq
settings from Maginnovision site fixed it (50-160 HZ
vertical; 30-86 HZ horizontal), apparently server settings
fixed in Xconfigurator-4.2.8-2 and later.