What do "2 x USER" and "2 x SID" mean?

Hi,
I think your NetScanner product is amazing and extremely informative.
Just one question: I don't know what the specific information from my scan which identifies Logged users and Logged SIDs mean. My scan states: "2 x USER" for Logged User; and "2 x [my SID]" for Logged SID.

Does this information mean that someone else is on my computer with me when I log in? If so, is there another way to troubleshoot these statements to confirm what they mean? Thank you.

This simply means there was more than one logon session (which is common when a service process runs under a user account). You can use this utility to see all logon sessions.