Big AVI won't load into TMPGENC 2.57

[Des]

I just finished capturing a 1 + hour home video using Virtual Dub and a WINTV PCI card.
I used Huffy compression for the video and PCM 16 bit stereo for the audio. I captured this at 352 x 480 with the intention of creating a CVD (1 or more).
The resulting file is 22+GB.
When I start up TMPGEnc and load this file as the video file I get a "Can not Open, or Unsupported File" message.
The file will load if I use it as an audio file, but I get no video and TMPGenc wants to save it out as a .mv2 file.

Has anyone else encountered this?
I am doing something wrong in the capture or in TMPGenc?
Do I need to have the video and audio as seperate files (though I don't think I ever had to in the past)?

I am using a AMD 1700 Athlon system with 512megs of RAM runnning Windows 2000.

Thanks in advance for any help and advice.

[Tommyknocker]

If you get an error message when opening the video or audio like file unsupported
or you get an empty(black) video preview window
or the video look wierd in the video preview window like green or purple or pink
Be sure that you have installed the DivX Codecs (both DivX 3.11, 4 and 5) and also try with the Nimo Codec Pack. If that does not work try to change the codec reader settings in TMPGEnc under Option->Environmental settings->VFAPI plug-in and right click on the DirectShow Multimedia File Reader and increase the priority to 1 or 2 and try open the video.

[SatStorm]

Frameserve your avi with vdub to TMPGenc.
That way, no probs