[Gazza1158]

This is what appears when I try to start Calibre
Problem signature:
Problem Event Name: APPCRASH
Application Name: calibre.exe
Application Version: 2.0.0.0
Application Timestamp: 53f6ba2a
Fault Module Name: Qt5Core.dll
Fault Module Version: 5.3.1.0
Fault Module Timestamp: 53df5d20
Exception Code: c000001d
Exception Offset: 001981ee
OS Version: 6.1.7601.2.1.0.768.3
Locale ID: 5129
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

Any hepl will be much appresiated