Após instalar Vnc4server Linux Mint não loga no perfil

Olá amigos, pela segunda vez esse problema me persegue, (no RaspBerry e agora no meu Querido Mint 17.3) , Resumidamente o meu problema é o seguinte:
Faço o o procedimento padrão encontrado no Google:

sudo apt-get install vnc4server
O VNC é instalado normalmente porem, o problema é que ao simplesmente reiniciar ou fazer Log off o meu usuário não acessa mais a interface gráfica, simplesmente acusa um erro não acessa se eu simplesmente criar um usuário novo ele ira acessar a interface gráfica sem problema porem se novamente instalar o vnc o problema volta.

Erro que é exibido ao logar no sistema:

syndaemon: nenhum processo localizado
/etc/mdm/Xsession: Beginning session setup...
/etc/mdm/Xsession: 25: /home/bull/.profile: shopt: not found
/etc/mdm/Xsession: 71: [: -eq: unexpected operator
/etc/mdm/Xsession: 160: /home/bull/.profile: shopt: not found
/etc/mdm/Xsession: 29: /usr/share/bash-completion/bash_completion: [[: not found
/etc/mdm/Xsession: 35: /usr/share/bash-completion/bash_completion: [[: not found
/etc/mdm/Xsession: 51: /usr/share/bash-completion/bash_completion: shopt: not found
/etc/mdm/Xsession: 57: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 62: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 65: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 68: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 71: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 74: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 77: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 80: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 83: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 86: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 89: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 92: /usr/share/bash-completion/bash_completion: complete: not found
/etc/mdm/Xsession: 101: /usr/share/bash-completion/bash_completion: Syntax error: "(" unexpected (expecting "}")

Ps; já googlei e infelizmente não achei nada que soluciona-se o meu problema, queria achar uma solução clara e não a gambiarra de mover os dados do meu perfil para outro usuário e etc.

Desde já agradeço toda e qualquer ajuda!!!