Hi,
Thanks for the compliments. It really means a lot to me, esp. from a long-timer like yourself who's stuck it through since probably 0.2 days.
Eh... works for me. I entered exactly what you describe. Automatically populate fields unchecked in both default and custom accounts. Just matching domain in deafult account. Using *://*.yahoo.com/* as the only pattern in a new custom account. Visited mail.yahoo.com and I activated CoolKey three different ways (toolbar, shortcut key, and context-menu item) and always got the correct password. Are you sure you're not getting the right password? Click Global Settings->Show all passwords on web pages as clear text to check. Also, the ring in the status bar tilts 45 degrees after CoolKey/auto-populate if a custom account was used. If the default account was used for the coolkey/autopopulate action, the ring does not tilt (but it still turns gold). Is the ring tilted for you after CoolKey activation?
Can anyone else chime in on this?