Vista - Windows Photo Gallery/Pictures crashing

Every time I open Windows Photo Gallery or open the pictures folder on my computer and look at a couple of pictures it crashes. This is the error I'm getting:

Problem signature:
Problem Event Name: APPCRASH
Application Name: Explorer.EXE
Application Version: 6.0.6001.18164
Application Timestamp: 4907e791
Fault Module Name: PhotoViewer.dll
Fault Module Version: 6.0.6001.18000
Fault Module Timestamp: 4791ada2
Exception Code: c0000005
Exception Offset: 000000000004ed72
OS Version: 6.0.6001.2.1.0.768.3
Locale ID: 1033
Additional Information 1: 8a52
Additional Information 2: 7e814733c5cbb8c90df7a758d8e4bca9
Additional Information 3: 8ffb
Additional Information 4: 76eaa141203a173446f5bdbec5875192


How do I fix this? I was able to edit pictures earlier in the day and then last night it started doing it. I restarted my computer today and tried again and it's still giving me this error. Thanks!