I use the ATTabs control to host forms like a MDI interface and I just noticed that on a couple of the forms when I load them up and display in the Attabs tabsheet that I have to click the tab twice or click once anywhere on the embedded form then click the tab close X and then it closes. I have a couple of other forms that don't do that, I can just click the tab X close button and it closes on the first time.
It's like some thing is stealing the focus on certain forms. I display all the embedded tabs the same way.
I also notices if I initiate the tab spawn from a double click even in a Virtual String Tree the focus stealing does not seem to happen and I can just click once to close the tab. If I spawn the tab from a popup menu item then I have to click on the tab twice or click anywhere on the form then it closes in one click.
I don't know for sure but it seems to have started to happen after I updated to Laz 2.06 but that is just a observation.