[ubuntu] user login not displayed

Hi

I am using ubuntu 12.04

I created a virtual machine ubuntu 12 and then created my account uzmeed

it was working fine but today some how the account uzmeed disappeared from login screen and instead of it I can see ubuntu 12 as a user (name of the machine)

I used Cntrl+Alt+F1 there I can login to my account can see all the folders

Please help how can i restore my userlogin to continue the work



Best Regards
Uzmeed