by GaryRussell » Sun Feb 22, 2009 12:17 pm
The X is only there if there is more than one market displayed in the same tab page. If you have multiple tab pages open and you want to close one of the tab pages, right click anywhere over the market and a popup menu will be displayed allowing you to close the tab page.
If you are only displaying one market in one tab page then there is no logical reason to close this market, you might as well close the application or select another market to replace it.