[Lynne]

Different browsers, and different operating systems, use a different set of keys (you mention alt+s, but for me, a mac user, I believe it is control + s) to submit the post.

I seem to recall that vb had this 'built in'. You would hover over the Post Reply button and it would tell you the key combination. However, that doesn't happen any longer.

edit to add: To submit my post, I tried using key combinations and control + s worked for me. Have you tried doing an alt + s to submit posts? Perhaps you need to use control + s also on PCs?