Add Audio to video not working in VEGAS

[beavereater]

The situation:

I used MemoriesOnTV3 to make an avi slideshow of photos I took. There's an option within the app to add music, however I would like to add 3 different songs without gaps and selecting the location of the fade in and out. Anyways, Vegas' layout does the job. When I preview it, it looks and sounds great.

However, when it comes to rendering it, it will start to render the first few seconds then stop and say it's complete. What am I doing wrong. The avi file and the mp3 files are all good when played alone.

[beavereater]

I think I figured it out. The avi is 720x480 and I was trying to export it in a different size. That's all I change and now it works. Not sure it that makes sense. Photography is more my thing...video is new...bare with me.