hey if this is the error you get it means something in the registry is not correct.
in fact the error i got was “could not access network location:_myIPSharedDocsMy pictures”
i tried tons of solutions (windows 2000) posted on this site and others and the only one that worked was the following:

click on run, type regedit
click on edit, find (or ctrl-f) and search for the location that couldnt be found.
Look for the one realted to msn and delete that value!
believe me it works!