Please describe the problem:
With more than one tab open, switch from one tab to another with mouse or <ctr><pg up>/<pgdn>.  When returning to the left-most tab, gnome-terminal automatically resizes itself.  For example:

% stty -a
speed 38400 baud; 30 rows; 138 columns;

change to leftmost tab:

% stty -a
speed 38400 baud; 52 rows; 193 columns;





Steps to reproduce:
1. Open new tab
2. change to new tab
3. change back to first tab


Actual results:
gnome-terminal resizes itself

Expected results:
gnome-terminal stays the same size

Does this happen every time?
yes

Other information:
The size gnome-terminal expands to is somehow related to current screen resolution.  In the example I supplied, I was running 1024x768.  On another box running at 1440x900, it expands even more.