I hace 3007*2 and 2405*3
for 3007 try (HDMI-DVI-D and DVI-D tv box)
all don't work
even dual-link DVI VGA card only can display 1280*800 or 2560*1600
If use ATI X1XXX VGA driver 6.3 can display from 640*480-2560*1600
7800 only 1280 or 2560
FOr Xbox only way is capture card use SVHS or component capture card (pixel magic)