It's a hidden trick someplace and I don't understand why it'd disabled by default; how do you enable accesskeys in Opera? Also they are not working in Firefox and only seem to work in IE at the moment.
In an answer to my own question in regards to Firefox (for future readers) you have to hold ALT+SHIFT+Key.
Additionally, for those who (like myself) feel ALT+SHIFT is a retarded inconsistency you can change it back to ALT+letter by following the directions on this thread on the Mozillazine forum... [forums.mozillazine.org...]
[edited by: JAB_Creations at 9:32 pm (utc) on Sep. 1, 2006]