Have controls ever disappeared from a form in a Windows Form project in Visual Studio.NET? And you were left here with a blank stare and controls missing. You you did nothing wrong, nothing at all!
We had this problem at Evolve from time to time. At worst times, of course. Murphy would be proud.
It looks like Microsoft finally found what the problem was. It looks it was really a though one as it took them more than two years to figure this one out. There is a hot-fix available, actually three, but not directly, you have to contact Microsoft in order to get it.
I don't think it's that big of a problem if you follow some simple rules and have some common sense.