I have the main layout set to "Invelos Default - High Res".  The only customization I make is to the "Collection List" window where I remove Release Date and Production Date, and replace them with "Last Watched" date.  The date which comes up is in US format (month/day/year).

I can't seem to find where I can flip that to "rest of the world" format, day/month/year.  I have tried various different System options (Tools - Options - System - Localization), but it does not seem to change the layout of that date.  There are many dates all over the place (for instance in General Info), is there one setting which will allow me to set them all in one go to day/month/year?

Thanks,
R.

Great, worked like a charm, thanks.  I have to say I was skeptical, I had already checked my setting in Control Panel was "English (Canada)", but I followed the steps nonetheless and it was exactly as you describe. 

Ahhh, much better.  No longer any confusion about whether 7/10/2011 is the 7th of October or not.

Thanks,
R.