Just beginning this evening, I have not been able to consistently click on links. Specifically, the cursor 'arrow' does not turn into a 'pointing finger' when I place it over links, including the 'x' link to close the page. I am able to clink on other tabs, and the problem does not occur when I am using Internet Explorer. After a period of time (usually from a half minute to a minute or so), I am able to click again, but then the problem inevitably returns. I had been using an earlier version of Firefox (3.5-something), so I immediately installed the newest version (3.6), as well as the Adobe flashplayer update, but the problem remains. Any help would be much appreciated.