For some time some of our drawings are displayed in eDrawing with transparent background. Also the users can't make any zoom on those drawings. I think the issue is related to views in drawings. In eDrawing if I selected one of the views the border is immense. Also as I noticed till now this issue appear on computers that have ATI graphic V4900.
The only workaround is to create drawings again.
If some one has any explanation please help.