Grading Tips for C3D 2010

Ok today I was looking over the grading plan I did on my subdivision and decided to fix a few things that can not be seen on paper but in 3D object viewer. I ran purge and audits and had no errors. Then I decided to look at my event viewer and noticed a lot or errors in my surface. If you don't know where the Event Viewer is, it's under the View tab, toolspace, under the palettes pull down. I decided to start going through each error and trying to fix the issue. I just thought this would be some helpful information for everyone. Later.