I recently rebuilt my computer due to my hard drive failing. After installing TMPGEnc 3.0 Xpress, I have been attempting to encode an AVI file from my digital camera. After adding the file to the project, TMPGEnc will hang (not responding). This is normally when I see the dialog regarding the field order. The CPU usage is 0, so I know the program is not in some sort of infiinite loop. It appears to be waiting for something. TMPGEnc was working fine on this same machine just prior to the reinstallation of new OS hard drive. My best guess currently is that TMPGEnc has some dependency on something else that I just haven't installed yet. I am looking for any suggestions on how resolve this.

I am using the very latest version (3.3.8.17). I also have the AC3 encoding installed. My machine is AMD 4600x2 with Vista premium. All other software appears to be working fine on my system.

When you make an update of PC all will be deleted included thos codecs which were compatible with xpress3, so when the program starts it looks for usable codecs in your PC but when there are not finded it hangs up or something weird happens.
I recommend you to install codecs which were present before, also I think that old TMPGEnc products do not work well at Vista.

good luck