Dont know if you would be able to do this but I would like you to get them to try this,
just found out something about that O23 entry,
Download
haxfix.exe
Save it to your desktop.
Close down all applications and every browser window.
Double-Click onto the haxfix.exe, to start the installation.
Put a checkmark next to "Create a desktop icon".
Click "Next" and follow the prompts on the screen.
When the installation is finished, make sure that "Launch HaxFix" is enabled.
Click "Finish".
Now a Red DOS Window opens with the following options to chose:
1. Make logfile
2. Run auto fix
3. Run manual fix
4. Run unknown fix
E. Exit Haxfix
Option 1: Make logfile.
Chose the Option 1: Create a log by pressing 1
This will need a moment of your time. When the HaxFix is finished, a textfile opens (haxlog.txt)
Post it here.