I'd recommend that you...
Start a free Windows Update support incident request:
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~Robear Dyer (PA Bear)
MS MVP-Windows (IE, OE, Security, Shell/User)
AumHa VSOP & Admin; DTS-L.net
> After KB945553 was installed to our machines last week, we had a rash
> of printing errors on our campus. All were XP boxes that would not
> print to our server queues. All of our Vista boxes were operating
> normally. We looked at that KB, and removed it from an XP box for
> testing. The box began printing properly to all of the queues that
> had the problems. We removed the update from both clusters that make
> up the print server, and our XP boxes began to print again.
> Anyone else experience this or have any insights on this?
> Rob Williamson