Mark: thanks for the details. Please close the platform and delete the USERGUI files by doing the following: 15:24 Mark: Exit the software Right click on the thinkorswim icon Left-click on PROPERTIES Left-click on FIND TARGET (Windows Vista/7: Select SHORTCUT tab and left-click OPEN FILE LOCATION) In the resulting window, right-click on the USERGUI folder Left-click on DELETE Restart thinkorswim. 15:30 Mark: for testin you may also want to try the Dark Background with High Contrast. 15:33 Mark: Plaese note that when you hover over a symbol it will display the line in light gray.
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