1. I have Maya PLE but plan to switch to the real Maya sometime in the future. Are the files from Maya PLE totally different than those in the regular Maya?

I dont want to make a bunch of Models in PLE and then have them not work in the real Maya, so I was curious if anyone knows? Any help would be great!!

Also...
2. Has anyone heard anything about Maya 7?

3. I had a problem batch rendering... when I try to batch render it says, "Cannot find an available port". Does anyone know how to fix this problem?

Thanks so much guys!!!!

I knew I could come here and ask these difficult questions because there are a lot of knowledgable Maya users here