End of stream error?

Finally managed to set up everything for creation of my dvd, including motion menus, pictures with music, so i started the transcoding and creation of the dvd image and i keep getting the following error:

'End of stream DVD error -19901'

I did a search and found it might be related to the motion menus, so i put the loop point exactly on 00:19:00 instead of 00:19:22, but this did not help and i still get the error.
I have got patch 1.0.1 installed.

What could be causing this? First time i'm using the motion menus, but after weeks of getting everything to look the way i want and getting stuck on the last bit, expecting to be finished today i'm very frustrated.

Other info is that i've separated the audio and video tracks into seperate files and place them together on a timeline.
Currently trying to re-encode, but that will probably not make difference.....

Anyone that can help?

I don't know what a GOP is, but in the dvdmenu window i set the loop point of the avi i selected.....please clear up where i should look....but does it have something to do with the loop point?

No one that can help me? Have to get this out this week and if it's not possible i'll have to inform the customer....thanks in advance