When auditioning a PJ for faults such as severe VB, dead pixels or colour 'staining', what test patterns are the most useful? What if the person doing the testing does not have any test discs and has no PC connected? Are there any movie discs containing and test patterns or simply menu screens or scenes that can be used? I assume when looking for dead pixels, it would be best to project a pure black picture? This is easy obviously easy to do with no test disc! What is the best method to find stuck pixels? Would it be projecting a solid red, then blue and finally green picture? What is the best way with no test disc? Any tricks, or just watch a few scenes from a movie? Is a solid grey picture the best for detecting VB and white for colour staining? By staining, I mean when a certain area of the screen can have a yellow or green tinge? Any normal discs with scenes that will do? I suppose for white, one could zoom in (on DVD player) on the white box on a THX Optimiser? Are there any other picture problems to look out for? I realize convergence may be a problem and I assume any THX Optimiser disc can be used for this?