Ok, well assuming that's you and not someone else with the same name (which happens): are they both at the same project? If you've crunched under that same name at a different project (and with a different listed email address) the BOINC stats system will have you down as two different people. If you go to the other project page and change your email to your current one (and then return at least one result there, from memory) the system should sort itself out and combine the two. Having the same email address across projects actually does matter (if you care about stats)