Now under Win 7 64-bit it doesn't warn me any more. What's wrong?
It works here ok. I'm also on Win7-64.
One possibility is that the option NOT to warn you has been ticked but I don't know how to re-set that.
The other possibility is that your new profile has not actually been set as the Windows default. Check in Control Panel, Color Management, Devices tab.
See attached screen shot.
Terry