A few problems with QuoteTracker that have bothered me for some time. I am using the latest version (3.8.6A) but these have been present in older versions too. My computer has WindowsXP with 1Gb of RAM. 1) Backfill (via IB) for pre-market data not working (at least not for futures). 2) Sometimes charts do not pop out when clicking a symbol. Or they do for a very short while before disappearing. This seems to happen for example after disconnecting an external monitor. The only way to get the charts visible again is to close and restart QT. 3) Data for deleted symbols retained. For example, "show all charts" produces charts for expired futures that were deleted long time ago. Is there a way to erase data for deleted symbols completely? 4) Maximizing a chart to fullscreen size sometimes shows only volume leaving the price display totally empty. Is this related to memory use? Closing other applications may (or may not) help. Does anyone have fixes to these?