I've got the EXACT same problem on my machine (only using real machine). 2 weeks ago, TV worked fine. Afterwards I re-installed my system and since then nothing worked.
/opt/teamviever8/logilfes/TeamViewer8_Logfile.log
2013/10/28 00:51:06.631 10633 4149193536 S0 CAcceptServer::HandleAccept: new connection from 127.0.0.1:56600
2013/10/28 00:51:06.673 10633 4149193536 S0! XSession: Unable to open XAuthority file "/home/user/.Xauthority"
2013/10/28 00:51:06.692 10633 4149193536 S0! XSession: Unable to open XAuthority file "/run/gdm/auth-for-gdm-726cz3/database"
2013/10/28 00:51:06.695 10633 4149193536 S0 TerminalServer: ProcessConnected type 2 PID 10951
2013/10/28 00:51:06.695 10633 4149193536 S0 SysSessionInfoManager_Lin: updating session information for session 0 from GUI
2013/10/28 00:51:06.895 10633 4149193536 S0!!!Crash: Coredump has been written at '/opt/teamviewer8/logfiles/TeamViewer_S_8.0.2093120131028T005106.core'
2013/10/28 00:51:06.895 10633 4149193536 S0 DeleteOldDumps: found 6 dump files ...
2013/10/28 00:51:06.896 10633 4149193536 S0 TeamViewer_Service received fatal SIGABRT
2013/10/28 00:51:07.006 11052 4151727936 S0 Starting as daemon
2013/10/28 00:51:07.008 11052 4151727936 S0 UpdateOnlineState newOnlineValue 0
2013/10/28 00:51:07.011 11052 4151727936 S0 MID: Read from disk failed.
Start: 2013/10/28 00:51:07.012
Version: 8.0.20931
ID: 0
Loglevel: Info (100)
License: 0
Server: master7.teamviewer.com
IC: 1886678094
CPU: Unknown
OS: Lx Fedora 19 (Schröd (32-bit)
IP: 192.168.0.10,10.184.1.6
MID: 0xe06995b35038_615cfedc_d41d8cd98f00b204
MIDv: 0
Proxy-Settings: Type=1 IP= User=
2013/10/28 00:51:07.012 11052 4151727936 S0!! CInterProcessNetwork::Start(): Port 5959 is in use. Trying next port
2013/10/28 00:51:07.012 11052 4151727936 S0 Using IPC-Port 5960
2013/10/28 00:51:07.016 11052 4151727936 S0 SystemdSessionInfoProvider: systemd-logind service available
2013/10/28 00:51:07.016 11052 4151727936 S0 systemd: updating session info by inotify
2013/10/28 00:51:07.016 11052 4151727936 S0 SystemdSeat: New seat seat0 [path=/org/freedesktop/login1/seat/seat0, activeSession='1', canGraphical=1, canTTY=1, canMultiSession=1]
2013/10/28 00:51:07.017 11052 4151727936 S0 SystemdSession: New session 1 [path=/org/freedesktop/login1/session/_31, TTY= seat=seat0 display=:0 vtnr=1 uid=SysUser_Lin: user [uid=1000, gid=1000 home=/home/user gecos=user shell=/bin/bash] idle=0(1382914353006446) active=1 type=x11 class=user state=active timestamp=1382902473687515 service=gdm-password defaultCG=systemd:/user/1000.user/1.session leader=1446 audit=1 remote=0 rHost= rUser= killProc=0] SysSession_Lin: 10001 [id=1, type=3 user=user tty=1 pseudotty=0 state=user active=1 reliable=1 info=0]
2013/10/28 00:51:07.017 11052 4151727936 S0 Session Information provided by systemd
2013/10/28 00:51:07.018 11052 4151727936 S0 XSocketSessionObserver: watching /tmp/.X11-unix
2013/10/28 00:51:07.029 11052 4151727936 S0! XSession: Unable to open XAuthority file "/home/user/.Xauthority"
2013/10/28 00:51:07.036 11052 4151727936 S0! XSession: Unable to open XAuthority file "/run/gdm/auth-for-gdm-726cz3/database"
2013/10/28 00:51:07.037 11052 4151727936 S0! XSession: Unable to open XAuthority file "/home/user/.Xauthority"
2013/10/28 00:51:07.043 11052 4151727936 S0! XSession: Unable to open XAuthority file "/run/gdm/auth-for-gdm-726cz3/database"
2013/10/28 00:51:07.043 11052 4151727936 S0 UpdateOnlineState newOnlineValue 0
2013/10/28 00:51:08.013 11052 4139776832 S0 TerminalServer::SessionLogin for session 0
2013/10/28 00:51:08.013 11052 4139776832 S0 CTerminalServer::RepeatedlyCheckForUserLogin() Don't start GUI for session 0
teamviewer --info
TeamViewer 8.0.20931
teamviewerd status teamviewerd.service - TeamViewer remote control daemon
Loaded: loaded (/etc/systemd/system/teamviewerd.service; enabled)
Active: active (running) since Mo 2013-10-28 00:51:07 CET; 6min ago
Main PID: 11052 (teamviewerd)
CGroup: name=systemd:/system/teamviewerd.service
??11052 /opt/teamviewer8/tv_bin/teamviewerd -d
Okt 28 00:51:07 localhost.localdomain systemd[1]: PID 10633 read from file /var/run/teamviewerd.pid does not exist.
Okt 28 00:51:07 localhost.localdomain systemd[1]: Started TeamViewer remote control daemon.
Okt 28 00:51:20 localhost.localdomain systemd[1]: Started TeamViewer remote control daemon.
Okt 28 00:51:59 localhost.localdomain systemd[1]: Started TeamViewer remote control daemon.
TeamViewer ID: not found
Try restarting the TeamViewer daemon (e.g. teamviewer --daemon restart)
And also, the restart didn't work. I don't see how the link to the ubuntuforums will help us. But I'm not a pro user.