We're running portal 2.6.1 on a Solaris box for an evaluation. The installation is very generic at this point. Things work great with Firefox, but with IE v6 and v7 we have issues with drag & drop and clicking control buttons in the portlet headers. It's as though the drag & drop event handler is consuming the clicks on the minimize, maximize, etc. buttons.
Have others experienced this... if so is there a solution? We have lots of IE users so we can't ignore this.