I for one love a challenge.. ( to a point)
Have a newer computer here running Windows 7 with office 2010. The user double clicks on an excel spreadsheet and up comes Excel as it should, and up comes the document. All of the options are grayed out so it is either opening in read only mode or some sort of protected mode, I suspect the latter.
Here is the gotcha; if you move the document on the screen, or minimize it and maximize it, all is normal after that. Currently scanning for VIRI but I don’t think I will find anything.