After completing an installation & convergence on a Barco Data 1100, everything seemed fine. Had perfectly converged crosshatch, but when I left adjustment mode, the Blue jumped 2" to the left, leaving blue Ghosts next to everything on normal programing. Only Blue horizontal is affected-the green & red remain perfectly converged. The only odd thing during setup was Blue raster centering required the adjustment set all the way to 0 (left) to achieve centering. The projection angle adjustment for Blue was normal-centered perfectly on green cross hairs. The rest of the converg. was normal with nothing too far out of center range. WHAT can be wrong?