gnome-terminal launch error backtrack 5 r3 hdd install but no error's on live cd

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http://www.backtrack-linux.org – i installed bt5 r3 on my toshiba portege m400 and when i go to use the terminal i get this error could not launch application Failed to execute child process "gnome-terminal" (Input/output error) but if i use the live cd the terminal works with out any problems only do's it is if it is installed on the hdd i have looked all over and alot of people has been having the same problem as i have since 2008 and thy are all using different pc and different linux os the only thing in comman is that it is gnome and none of them has a fix i tryed Terminator konsole and it works fine with no er (HowTos)