Have you had problems loading Adobe Photoshop CS4?
Opens the loading screen and then just crashes?
Maybe you’ve installed a bad brush or pattern or fx?
The quickest and easiest way to get yourself back up and running again with Photoshop is by resetting the Settings File.
For PC Users Simply hold down CTRL+SHIFT+ALT and whilst holding down open Photoshop.
For Evil Mac Users Simply hold down SHIFT+COMMAND+OPTION and whilst holding these down open Photoshop.
Photoshop will then ask you if you’d like to delete your Settings file, obviously click yes!
Job done! Remember reinstalling/repairing photoshop will NOT clear your settings file so try this first 
Great tip, I assume this works with all versions.
I use Photoshop CS3 (when I’ve got it installed that is).
Only been tried on CS4 so far sorry
Maybe you can test it and reply 