After installing SP4 I am unable to delete annotations (of any type) or dimensions in Drawings.  Not only does the Delete key not work, but there is no Delete option available in the flyout menu when you right click on an annotation or dimension.  Needless to say this is worse than inconvenient.  Anyone else experiencing this?

Also, I note that in at least four two-sheet Drawings I have of small Assemblies (40 or 50 parts), the views on the inactive sheet will go Detached spuriously upon opening the Drawing anew.  Is this common behavior in SW2011?  Didn't seem to happen on SP3.