I just noticed on the latest update 7.5.5.002 that on the Client Login page in "Mobile mode" when you click on Order Details the popup is wider than the screen.
I changed the following in ectcart.css and it seems to center it on all screens.
Hi Patrick I've fixed this too and added the fix to the updater. The actual problem is to do with the box sizing so it's better to have the updater version really. I've also added a "Close" graphic as on mobile there isn't a lot of background to click and you may not see the buttons at the bottom.