Photoshop :: Can't Open CS5 And Elements 7?

I have both Photoshop CS5 and Elements 7 on my laptop, which uses OS Windows 7 64-bit. Recently I was trying to use CS5 and it keeps freezing on me and giving me an "Adobe Photoshop CS5 has stopped working" error. Since CS5 wouldn't work, I tried switching to Elements 7. When I double-clicked the icon, I got nothing but the swirly blue 'wait' circle. It won't open at all unless I try to open a PSD file, then the editor screen pops up for just a moment and I get another "has stopped working" error.

The only thing I've recently installed was an Intuous 5 tablet. Thinking that might be the problem, I tried uninstalling it but not only does the problem still persist, I can't re-install my new tablet because the installation software uses Adobe Projector and I get a, wait for it, "Adobe Projecter has stopped working" error. All my other programs are working fine, it's only the Adobe programs that keep giving me errors. I've tried restarting the computer and uninstalling and re-installing Photoshop. My system is fully updated, as are both programs. The error I get in the event log is this:
 
"Faulting application name: PhotoshopElementsEditor.exe, version: 7.0.0.0, time stamp: 0x48cff252
Faulting module name: ntdll.dll, version: 6.1.7601.17725, time stamp: 0x4ec49b8f
Exception code: 0xc0000005"