Just a heads up to anyone else thinking of running IE7 Beta 2 – it will break ArcToolbox. I had not connected the dots on this, but ESRI Tech support mentioned this as a possible cause of my problem, and they were right.
The symptom is that when you try to open an GP Task by double clicking on in – either in a model, or in ToolBox, ArcMap will crash. No useful message, just a “Please report this to Microsoft” pop-up box. As soon as you un-install IE7, it works just fine. This is a pain because having tabs in IE made working with our Team System portals much nicer than having a bunch IE sessions open. I have not tried running IE7 without installing it, as J noted on his blog next week. It would be cool if this fixes the problem.
