I'm running a site on WP 2.6, admin-ing with Firefox on Mac OS 10.5. I have the plugin WP-eCommerce installed and running. It's working fine, but now that it's installed, clicking on any of the "Add Media" icons in the Post/Page editor results in no pop-up window for completing the task. There is a moment where it looks like the page is refreshing, but no pop-up. (If I disable the plugin, it works fine, but obviously I can't keep disabling it every time I need to attach some media to a post/page.) It seems like some kind of conflict between the WP core and the plugin.
Thanks, and apologies if this already posted elsewhere; I searched for a solution, but didn't find one.