While we're sitting waiting, this is a quality read!
http://www.independent.co.uk/news/people/disgruntled-rbs-worker-writes-hilarious-open-letter-to-russell-brand-after-anticapitalist-publicity-stunt-leaves-him-hungry-9930135.html
Do you mean the box showing the high/low/open/close etc of each point the cursor is hovering on?
Try Options - Display on Charts - Uncheck 'Display cursor details on chart windows'.