having problem with "TMPGEnc DVD Author" after tut

[lowrunner]

hi guys!
ok i have avi movie files(2). i used the tutorial "Convert to DVD Compliant MPEG2" i did exacltly what it said,using "TMPGEnc plus" except on the tutorials the pictures of what its supposed to look like dont show up on my computer . but it looks like i did it right.but when i go into "TMPGEnc DVD Author" and try to pull up the "M2V" file a screen pops up saying:
"A Video Sequence header is necessary for every GOP in a standard DVD. the VIEDEO SEQUENCE HEADER IS INCORRECT.

then under that it says:
"The video gop is too long.
the GOP of the video is too long.
Dvd standard requires the GOP structured as below
36 fields (18 frames) (ntsc system)
30 fields(15 frames) (pal system)


What am i doing wrong? is there something i didnt check?
thank you

[BrainStorm69]

Make sure your settings under the GOP tab look something like this: