Hi there. Today I've experienced a new one - -random ghost typing in the search bar for both safari and firefox. While I am parked on a page, or starting to enter an address, the zeroes (or letter O's? hard to tell) just start flying across the screen and I get lots of little "blump, blump, blump" noises from the mac when it reaches the end of the space provided. I can interrupt the flow of zeroes by hitting the delete bar and backing up to the start of the line and overtyping. Happens in Safari or Firefox. I've rebooted, cleared the internet cache, searched for any extensions in Firefox, checked my security settings. It happens intermittently still. Any ideas? Thanks! L.