Hi Greg,
We definitely haven’t tested in an IIS environment. Is there something specifically turning notifications on? They shouldn’t usually cause an issue, and usually hidden.
If you send us a list of the notifications that are coming up by email to [email protected], we can make sure that the variables are initialized before checking them in the next update.
Was there anything that said “Warning” or “Error” in the message list? Those ones would need to be dealt with ASAP.
Thanks for letting us know about the reinstalling fix, it could just have been that one of the files was corrupted while downloading from the WordPress repository. Re-installing would delete the files and then re-download them, which would fix that issue.