Have you got the most recent build of TWS? 862.9a is what I have. On the TWS go to "configure" then to "order", select "trigger method". When you pull that up it will tell you to use "order defaults", which should be an option in the left hand column of the page you're looking at. If you click that, it will pull another page up. In the right hand upper side you will see "trigger method". There's a drop down box with 7 alternatives. I'd recommend familiarizing yourself with the TWS. OldTrader
I believe it's 864 as of today, but that's the browser based edition. 862.9a is the latest standalone.
OK, thanks a lot guys for all your help, I really appreciate it. I heard back from IB and they said it probably had to do with my trigger method (just like you said). When I upgraded to the new build, I saw all the extra options so now I can tweak it as needed. I thinking of going with Last method or Double Last (all the others seem too esoteric) though midpoint seem like a good way to avoid the spread, though risking not getting filled at all ? I was wondering what everyone else used for the trigger? BTW, I was on a Build from May! It kept asking me if I wanted to update and I'd say yes but it obviously wasn't doing anything.