insert matrix: menu does no accept marked size

[Jannick Asmus]

Hi,

inserting a matrix in math mode with the matrix menu does not accept if 
the size is marked with the mouse. What is used is the size marked in 
the col/row fields of the menu.

Is this a bug?

Using LyX 2.0b1 on WinVista.

Thx.

/J.