Kannagi no Tori Appcrash

Hi all. I have downloaded (from links on this site) what seems to be a good 3cd iso version of Kannagi no Tori. According to the installer dialog box the installation goes ok.
However each time I run kannagi.exe, as soon as the game window opens a Windows message appears: "Kannagi.exe has stopped working". This happens whether or not I patch it with the tori140.exe patch.
I am running Windows Vista. I have Japanese language support installed. I have tried running kannagi.exe with compatability settings for XP/NT/2000/98 and running as administrator in each of these. I have uninstalled, installed and rebooted.
Here is the full text of the Windows dialog box:

Problem Event Name: APPCRASH
Application Name: kannagi.exe
Application Version: 0.0.0.0
Application Timestamp: 3e96bcb3
Fault Module Name: kannagi.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 3e96bcb3
Exception Code: c0000005
Exception Offset: 0002ee50
OS Version: 6.0.6001.2.1.0.768.2
Locale ID: 6153
Additional Information 1: 6cab
Additional Information 2: 82b735109b3a0ec164fa5f4d8e69fb29
Additional Information 3: 4606
Additional Information 4: 0df95922f4d712be182e57cc8a013157

Any advice or suggestions would be greatly appreciated

I have found a solution for this. I ran kannagi.exe in ollydbg (the reverse engineering tool) to find out exactly where in the program the error was happening. No error was shown but the game seems to play perfectly if running through ollydbg.
Ollydbg is free to download so if you're having a similar problem I'd recommend giving this a go.