ALT+D moves the focus to Address bar in IE8

[MadHatter]

alt+d is not a hot key, it is an accessibility key bound to the "d" in "address" which used to be the label next to the url in internet explorer, the same as "f" in "file" from the menu.

use a different accelerator. every web browser (from the earilest implementation of ie to netscape / mozilla / firefox, to chrome, to safari to opera...) uses this shortcut to access the url / address textbox, so if you're writing a browser addin, every web browser user in existence will be thrown off by your new implementation alt+d, pick a new shortcut and document it.