I find it interesting that you're still getting problems with camera views even though you've restricted yourself to the camera dolly controls. I don't experience this problem at all. 1.) Do not use the zoom tool (magnifying glass) in any of the normal camera views (as stated by bluetone). 2.) Do not use the hand tool for the same camera situations. If you turn on the production frame, you can see where the center of view is for the camera and begin to understand what you're doing to get yourself drifted off of it. As for the error in the grid dialogue box, that's an error I get ALL the time and it's not just restricted to fussing with the snap option. It's also not repeatable! It's some kind of leak in the code that's been there for a long time. It has never seemed to get me screwed up though. I just keep acknowledging it and keep on modeling. -Kix

-Kix