MS: Uh, Vista patch may fubar some security programs.
Ya know, I can understand that an update might cause problems with certain programs, but screwing up the security programs really should be the one thing that they avoid doing.
To be followed by Microsoft’s new $39.99 Vista service pack 1 compatable security program…
A Patch that makes less things work. WANT!
In a couple years all the bugs should be worked out and it will be compatible with nothing. 
Seriously. 
It’s the Windows ME of the 21st century.