iTunes crashes - Windows 7 64-bit

HI

I have downloaded the 64-bit version itunes and after around a minute of opening it then freezes/crashes.

This is the report:

Description
A problem caused this program to stop interacting with Windows.
Faulting Application Path: C:\Program Files (x86)\iTunes\iTunes.exe

Problem signature
Problem Event Name: AppHangB1
Application Name: iTunes.exe
Application Version: 10.0.1.22
Application Timestamp: 4c9c64ce
Hang Signature: 382d
Hang Type: 2048
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 2057
Additional Hang Signature 1: 382dc259b192ee88b6ae04650e591dfa
Additional Hang Signature 2: 6fa2
Additional Hang Signature 3: 6fa2cb6e582a05d640ed58bf70a725b6
Additional Hang Signature 4: 382d
Additional Hang Signature 5: 382dc259b192ee88b6ae04650e591dfa
Additional Hang Signature 6: 6fa2
Additional Hang Signature 7: 6fa2cb6e582a05d640ed58bf70a725b6

I have tried uninstalling all previous apple software and then reinstalling.

Quicktime also appears to work.

Appreciate your help.

Thanks