Volin,
We are on 2.1 now and bulk upload is working fine. I tested your names with our bulk upload (using bogus email addresses) and did not get an error, so I have two suggestions:
1) your CSV file could have some hidden characters, so open it in Notepad and remove anything extraneous at the end of the file
2) since it's only two users, you could also create the accounts individually while you figure out what's broken with your bulk upload.
DeeDee