Hi,

I know this is possibly a no-brainer... but that's how I feel right now.

I have run deshaker on a short .avi file, and the resultant .avi file was changed to 4:3 aspect, vs. the original 16:9 widescreen.

Is there a setting I am missing to retain the original aspect ratio.

Ron,
I am no expert here, but...
On VirtualDube be sure that on the pass 2 you have the correct settings "Anamorphic NTSC" and "720x480".
On Vegas timeline right click on the clip for properties and
again change the above.