This happens when security has closed your account. You'll get a check in a few days Sorry, you'll need a new broker. Just kidding Configure - Lock and Exit Click on Never Lock 2nd down
it is annoying. but what even more annoying that they(IB) change everything ALL the time without give you a warning,note or whatever. usually those "surprise" changes are not in release notes. lock is one of them. you upgrade your TWS version, didn't change anything-bam! locked. i did upgrade from 893 to 896. when i tried to close basket window(by pressing X on upper right corner)-the page didn't close, it goes right to TWS and stays there until i delete it from there manually. no way to "reconfigure" this.. so..they change very basic functionality that every single applications is using(press X-application\window will close) without mentioned in release notes. nice! now instead of 1 click i have to click 5 times just to remove this f* window, after i'm done with it. charts-some time i use this retarded piece of TWS to see high\low on certain bars..crosshair function-use to be-click on chart-you have it, click one more time-gone. nice and simple. now-right click on chart, choose toggle crosshair, to remove it-right click on chart- choose toggle crosshair. 4 clicks instead of 2. it's better this way..hell yeah! typical IB approach.