heyas, guys!

   i'm trying to insert something into a moving shot (ie: put my logo on a sign, put a moon in a pool of water), and no matter how carefully i keyframe the sucker, it 'drifts' or 'slides around' and looks totally fake.  i drove myself nuts one day actually keyframing every single frame of the shot, to get the overlay placed exactly, and it still looked horrible.

   i was using Vegas 10 Platinum (i have been for a few years, but i'm still an amateur), and i tried image stabilization on the base video clips, but... though the background motion was smoother, i couldn't get the overlay to stop 'slipping.'   now i have the 14pro trial (and image stabilization is an extra not included in the trial, apparently?).  or do i need motion-tracking instead?? gah!

   is there a secret trick to making something like this work?  right now, i'm blending two shots, and one needs to be pan/cropped to fit with the other, and i'm still running into the jinking and sliding around effect.  i have 'quantize to frames' turned on.  should it be turned off?  or something else, like... i dunno; the framerates of the clips are different?  offset??  or something to do with interlacing or resampling?

any ideas?  thanks a bunch!