<back> command

[idr]

I am surfing on IE6 with a mouse with programmable buttons, of which one executes the <back> command.
However some of the pages don’t allow this command, and then I must use the usual closing of the page, either by the X or from the keyboard by ^W.
The last one is not convenient and I would like to change it to some other hot key such as Alt-z or so.
Can I do it and how?
Is there any other simple way to go back from pages which don’t allow the direct <back> command?
Please advise.
thanks

[gors100]

Hi, try Windows+left arrow to go back a page, Windows+right arrow to go forward and Alt+F4 canbe used to close pages.

[Commandr]

I find Backspace is works well.