If nothing helps, you should uninstall InDesign and choose to delete preferences. Then have a look into your user and in the computer’s Library > Application Support > Adobe and delete on both places everything from InDesign, do the same with preferences. like saved date or what you are able to find. Then restart the computer and install InDesign from the scratch and apply all available updates. Then start it again. It should run.
If it does not help, try to create a new user for testing purposes and run your computer from that account. If InDesign runs normal than you have a problem with your user account on OS basis.
Thank you so much for the response Willi. I will give it a go! Fingers crossed.
I think you're still missing the font used to draw the UI, but off the top of my head I'm not sure what it is on Mac.
That sounds right...
I tried what you suggested, however still something wrong.
I did have some luck with creating a new user, indesign appears fine there.
I have double checked (as other people suggested) and LucidaGrande is in my fonts, so i don't think it's that.
Do you have any other suggestions knowing it's something to do with that particular user account??
Thanks for all your help.