I get this when trying to add products to a block. I have disabled mod security, and it still does it. I fixed it once with one of my other stores, but can't remember what else I did. Can you guys think of what I forgot to do?
Oh come on, I know that it was something simple… Really suprised that no one has responded yet.
Man, 3 hours between posts… You need to learn some patience.
Maybe others memory of your problem is the same as yours.
Remember that this forum encompasses many timezones. So for me, your posts were at 9pm and Midnight on a Saturday! Sheesh.
Your problem is an AJAX error. Look at the page source afterward to see if there's any PHP errors embedded in the response (rewrite of the page). You can also check your PHP error_log for any errors.