Everytime I open InDesign CS5.5 and try to make a new document on my Macbook Pro, it immediately crashes. I am running Mac OS X 10.10.1, but I don't think the OS is the problem, because it has always done this, ever since I bought CS5 in 2011, and have been through multiple OS X updates and nothing changes. I have also twice tried completely uninstalling and reinstalling InDesign, but still the same issue. Photoshop, Illustrator, and Bridge all work fine, its just InDesign that doesn't. I really need to work on InDesign on my laptop now that I don't have access to school computers, so I need this fixed ASAP. I am not a computer whiz, so a lot of the talk on these forums is over my head, so if you can help, please keep that in mind. Any help would be greatly appreciated!
Try trashing your preferences, but CS5.5 is unsupported under 10.10 so anything that was a problem may well be amplified by the multiple O/S upgrades.
please explain what you mean by "trashing your preferences"