CS5 crashing on new image/opening image

Question

Okay, so here's the deal: I've owned my MacBook Pro for less than 12 hours, and it's been a great computer that entire time. That's the same amount of time I've had CS5 Extended installed on my computer, and it was working fine until this evening.
Now, any time I try to create a new image or open an existing image, I get an error telling me that Photoshop has quit unexpectedly. Google is providing little help in regards to the matter.
I know it can't be something faulty with my computer as I've done nothing with it, and uninstalling/reinstalling CS5 itself proved no good. Am I just missing something considering I'm a new Mac owner? It's very frustrating. 
I'm willing to post the data report I get when it crashes if it'd be helpful.

Answer 1

I know it can't be something faulty with my computer as I've done nothing with it,
Sadly, that part is not realistic.. they can just have problems on their own even straight out of the box, it is usually not the CPU, but the operating system and software still coming together.
Have you updated the o/s and applications with any patches etc? There can be a lot of them.
Firmware updated?
You need to do those and then repair permissions and a restart.  (Some people advocate doing that twice)
If you have problems after that then reinstalling some apps may be required, there have been issues in years gone by with the installations of some software messing up another but I think that is very rare.
Check your font collection using Fontbook or a utility, and clear caches using Cocktail (or whatever the current best cleaning utility is).