• I submit a post in a forum where I have Staff permissions (ALT+S submits it fine).
• I edit the post and make some changes.
• I try to save the post with ALT+S.
Instead of ALT+S acting on the "Submit" button, it uses the "Move Thread..." option for Staff members.
For ALT+S to use the "Submit" button.
Again, just in forums where you have Staff powers. So this will occur for me in the Folding@Home forum, but not the AMD CPUs forum.
Also, only tested in IE9.