Some of you that are using MCE 2005, will probably have the April Update Rollup installed. (Check Chris Lanier's blog for my comment)
I can't speak for all other MCE out there, but with this update on my HP MCE, I get the classic Oct2005 RU2 "Code 3" problem.
My workaround is to remove KB914548 for the time being until someone can confirm and fixed the problem.
The problem I have is, whenever I get into MCE > Settings > TV, I will get an error saying a critical component problem. CODE 3 error. And any menu from there onward will give me the same error message too.
You will noticed your Recorded TV will not list all the recorded programmes you recorded, and you cannot add new recording schedule.
I don't know how severe is this. I just hope everyone be aware of this and update and see if it fixed your existing problems, and not create new problem.