I am getting a graphic problem with the October beta in the 3d view only. It wants to make a cutting plane view when zooming in. This only occurred after playing with the new dimension features.

I updated my graphics driver and restarted, same issue. I tried to make a new document in beta4 but same issue. I then opened v3 and pasted only the solids in, success. Then I went back and got the curves not associated with dimensions and pasted those in, success. Now I have opened it in beta4 and the issue is gone.