If i try and enlarge chat box and click the top, it grips it halfway down the chat box so if i move your mouse up i can enlarge box to such an extent the top goes off screen, if you then let go of mouse button there is no way of re-sizing the box as the grab for re-sizing is no longer visible , you cant log off or see anything you have to refresh the browser, can some techy person set a parameter that does not allow this?
regards
Ged