Hehehe, am I surprised. Off course not. After all it is Microsoft. Well below is the more in detail screenshot of what pop ups I get and solution to this nuisance.
update:
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error update:
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Ok, so what do you do?
There is two solutions:
1. Install patch so that MSN continues running without updating
2. Install update regardless incompatibility
Follow the link to more complete solution:
http://messengergeek.spaces.live.com/blog/cns!E3785B1281BBDA1!3406.entry