Hi. I am using Lyx1.4pre2 with the qt frontend on Ubuntu 5.04. It behaves strange when, in the math mode (display), I want to insert a two-by-two matrix and then I select it and try to insert parenthesis to the left and right (a matrix). After I press the insert button (for parenthesis), the matrix becomes a 1X2 matrix (it erases on row).
Regards, Marius