Login Screen/Process has changed. Is there another user?

I had left the MacMini in sleep mode last night and had to login from scratch this morning. The login screens (File vault is locked) were again very different from the last self-shutdown (I usually just put it to sleep). Today it needed me to to unlock then enter Username (I'm the only user - this field had always been filled in) and PW. Checked the login keychain to find myself identified as "718". Kind: PPP Password, Account: Mine, Where: F48888D8-842C-4BD0-A0E3-E1C984A51042, and modified 10/14 8:00 p.m. Is this coming from System Network preferences??

I looked for hints of why the login process changed yet once more. I had made minor changes hoping to secure sharing. Usually when I logged on the sharing preferences were either unlocked, or bluetooth serial ports were on and locked. (Not by me). Please help me to reset the Mini to how the login and sharing preferences are supposed to be.

Here are selected lines from the Sync Services system log at about the time I turned it on. I've googled most of the entries and "remote controller" and "multiple devices" don't sound right. One thing I wonder is why it turns on through macvanagas.gateway.2wire.net, a networking address.

Oct 17 11:26:55 MacVanagas kernel[0]: Ethernet [AppleBCM5701Ethernet]: Link up on en0, 100-Megabit, Full-duplex, Symmetric flow-control, Debug [796d,2301,0de1,0300,45e1,0000

Oct 17 11:26:57 macvanagas.gateway.2wire.net configd[16]: setting hostname to "macvanagas.gateway.2wire.net"

dbname: od:/Local/Default

mkey_file: /var/db/krb5kdc/m-ke

acl_file: /var/db/krb5kdc/kadmind.acl

macvanagas.gateway.2wire.net digest-service[812]: digest-request: uid=0

macvanagas kernel[0]: IOBluetoothUSBDFU::probe My bluetooth is disabled

macvanagas kernel[0]: IOBluetoothUSBDFU::probe ProductID - 0x828A FirmwareVersion - 0x0066

macvanagas kernel[0]: **** [BroadcomBluetoothHostControllerUSBTransport][start] -- Completed -- this = 0xffffff8014a2b000 ****

macvanagas kernel[0]: [IOBluetoothHCIController][staticBluetoothHCIControllerTransportShowsUp] -- Received Bluetooth Controller register service notification -- controller = 0xffffff8014a2b000

Oct 17 11:27:05 macvanagas.gateway.2wire.net rpcsvchost[818]: sandbox_init: com.apple.msrpc.netlogon.sb succeeded

Oct 17 11:27:05 macvanagas.gateway.2wire.net digest-service[812]: digest-request: init return domain: MACVANAGAS server: MACVANAGAS

CGXDisableUpdate: UI updates were forcibly disabled by application "universalaccessd" for over 1.00 seconds. Server has re-enabled them.

Oct 17 11:27:05 macvanagas.gateway.2wire.net digest-service[812]: digest-request: uid=0

macvanagas.gateway.2wire.net digest-service[812]: digest-request: init return domain: MACVANAGAS server: MACVANAGAS

Oct 17 11:42:56 macvanagas.gateway.2wire.net mdwrite[952]: [ERROR] [0.001s] com.apple. UBItemStatusNotification.c:805 _do_UBItemStatusNotificationRegisterURLs() can't find realpath for "/Users/anerismithe/Library/Mobile Documents/com~apple~system~spotlight/mdlabels", was blocked at "/Users/anerismithe/Library/Mobile Documents": 2

No alternate URLs found for packageId MobileDevice

It is scary that a Mobile Device is trying to join me.

In software installations there are two new 3rd Party PlugIns installed last night and this morning. No other information. It's possible that one is an NPR piece that just now showed up in the software list.

A concern is that firewall, system and UUCP logs are now of .bz2 activity. For example, system.log.0.bz2

There is a warmd user named "nobody" sending and receiving msgs @ port 38.

In the most recent shutdown log there is a good bit of shared and anonymous activity. For example,

30575 com.apple.launchd.peruser.501 133 com.apple.mdworker.single.08000000-0000-0000-0000-000000000000 0 Mach service deleted:

30596 com.apple.launchd.peruser.501 133 com.apple.mdworker.shared.04000000-0000-0000-0000-000000000000 0 Mach service deleted:

30991 com.apple.launchd.peruser.501 133 0x7ff4e251c760.anonymous.com.apple.Notes 480 Reaping

30998 com.apple.launchd.peruser.501 133 0x7ff4e251c760.anonymous.com.apple.Notes 0 Removed

554038 com.apple.launchd.peruser.501 133 0x7ff4e24039f0.anonymous.loginwindow 53 Mach service deleted (port died): com.apple.coredrag

560772 com.apple.launchd.peruser.501 133 0x7ff4e24039f0.anonymous.loginwindow 0 Removed

I apologize for putting up all these logs pieces. I don't haved the vocabulary to convey it in words.

Should I take the Mini to the genius bar, have it wiped clean and start over?