Just tried to actually use the linked Windows Live IDs I set up the other day. I discovered an annoyance: Using my old ID returns an error if I try to access Hotmail. If I use the switch menu on the error page, it reloads and takes me to Hotmail, but I think Microsoft should make it automatically detect services present in one account but not in the other and switch automatically and seamlessly to the account that has the service. Configuring default accounts for services present in more than one linked ID would also be nice, if auto-switching is developed.
Windows Live ID Linking Not Seamless
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