I have a big roblem with ut3. it crashes all the time wenn i play custom maps or normal maps with mutators and even without them. i intalled the latest drivers for my GC but nothing. i post this log maybe sombody can help me PLEASSSSSE

Problem Event Name: APPCRASH
Application Name: UT3.exe
Application Version:
Application Timestamp: 49cb0f31
Fault Module Name: UT3.exe
Fault Module Version:
Fault Module Timestamp: 49cb0f31
Exception Code: c0000005
Exception Offset: 00754261
OS Version: 6.0.6001.
Locale ID: 1031
Additional Information 1: fd00
Additional Information 2: ea6f5fe8924aaa756324d57f87834160
Additional Information 3: fd00
Additional Information 4: ea6f5fe8924aaa756324d57f87834160