when i try and rebuild bitfields it takes me to a white screen

ok, make sure you have backed up then drop those two records from the datastore table too.

If that doesn't work, then I have no idea.

whats the sql code to drop a line of code from within a field

the two lines are in datastore > data

I'm not sure. If you have phpmyadmin you can delete them directly from in there though.

i tried that, and my site went down lol :)

Thats why I advised to take a backup then you can restore it if it goes wrong.

i did back up :)