Hatches (with all variables the same) look different from machine to machine as though different scales were used. Is there a system variable that could be affecting it?
To turn all layers off except the current layer.
(DEFUN C:LO nil (COMMAND "LAYER" "OFF" "*" ""))
Then conversely this will turn all but frozen on
(DEFUN C:OL nil (COMMAND "LAYER" "ON" "*" ""))
Tracking (shortcut tk) however, has become my current favorite.