Speaking of OmniWeb (and this issue predates 10.1.5, yet it continues), I've noticed that when I go Back to a page where I've entered text, the page is essentially dead (won't do anything when clicked) unless I reload the page first (which clears All the text I'd entered.) This didn't seem to be an issue with the last version of OM (I'm using 4.1.7 v 10 -- the latest).