Hi Ingo,
Not a problem, but for future situations I'd be happy to get it off by default :-)
I know it's for dev-mode, but I'm wondering why run the risk of things going haywire in IE in quirksmode.... to see where templates end and start. It's a good feature to be able to see start and end points of templates, don't get me wrong, but not by default if it can have such weird effects....
Thanks for picking this up and making the ticket!