What Is This GL Error That I Am Getting?

I am getting this error when I close the Adobe Photoshop CS5 program:

Problem signature:
Problem Event Name: APPCRASH
Application Name: Photoshop.exe
Application Version: 12.0.0.0
Application Timestamp: 4bbc56b6
Fault Module Name: atioglxx.dll
Fault Module Version: 6.14.10.9252
Fault Module Timestamp: 4b22aad4
Exception Code: c0000005
Exception Offset: 006597d2
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789 Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

Can you please help me?

Dell Studio XPS 8100
ATI RADEON HD 5670
8 GB RAM
64 Bit
Windows 7

Thank you!

sherman