Found the problem and the solution. I'm guessing that this must be happening to other people as well so I'm going to explain it.
The new version of the IDE uses a different keywords system and loads the keywords.ini file from a different folder although the setup never actually makes this folder so none of the comamnds will be syntax highlighted.
The solution is to just create a folder called "Keywords" in your "Dark Basic Professional\Editor" directory. Then copy the "keywords.ini" file from the "FrontEnds" folder and paste it in the newly created "Keywords" one and it should work. Hope that made sense.
"Computers are useless they can only give you answers."