This is driving me around the bend for hours please someone help.

I've created my project that has one movie within it, along the way I have deleted and re-added several scenes and transitional effects.

When I go to the Burn Section, within the Navigation Tree there are duplicate entries for a lot of the scenes, from the ones that have been deleted from within the project, what is more frustrating is that they appear to be only 1 second or less long, so when you attempt to burn to disk it come back with an error, something along the lines of Scene XX is less than 1 second long.

How do you update the Burn section to reflect your updated project, I've burnt 2 disks so far that won't work due to the navigation, when you click a button in the menu it just takes you back to the main menu.

TIA