OK Restore MBR gives me a blank menu.lst, should I write it by hand or that are other means of auto detect?
Edit. Iḿ working from a live usb stick
If the LiveUSB stick was created with LiveUSB Creator then you could copy the /boot directory directly from the stick partition, and that will have all the files needed, including a menu.lst file which would need editing.
You could try running the RedoMBR app again after that.
In truth I have never run the RedoMBR like that ..... always found it easier to edit by hand.
Check permissions of files just in case ......