You say the removal tool from symantec didn't work? Then it must be one of the bropia version that can't be deleted with the removal tool.
Check if one of these processes are running in the background (press ctrl+alt+del).
NOTE: You can just remove the file from the startup list by removing the keys from the register, but this does not completly clear the computer of the virus! Get a virus scanner to clear the computer completly of the virus.
I guess AVG can delete the virus. Download it here:
http://free.grisoft.com/freeweb.php/doc/2/ Scroll all the way down for download link.
