I don't know if others are experiencing the same thing, but some posts are half-invisible when I am viewing them on my iMac.
For example, in this post by wa2ise
I can only see the first line of the post - if I click and drag, highlighting the text of the post it shows the whole post, but only in the first available line in the frame.
It could be my browsers - my iMac is getting pretty old, I'm running OS 9.2 with Netscape 6 (also happens with IE 5.1). It seems as though it happened on my new PC as well, but I can't be sure of that now.
I'm also in favor of a 15-20 minute edit window.
I know, I'm the whiniest lurker on the site!