LOL! Thanks Brundlefly!
That's what I thought- I've never used "Share Drivers with other programs" with Asio; just WDM but since E-Mu WDM sucks, ASIO is the only way to go with this card. I do use the onboard sound for Media Player etc. without any conflicts with the E-Mu.
I agree that it's probably system specific- maybe a combo of other apps/drivers. I do constantly update Windows with the latest patches. They have many "Compatibility" updates that who knows what they fix or do. I always image my partition with Acronis True Image before any updates.
What's ironic about the 1820m is when I first got it in late 2006, I had nothing but issues with BSOD's on my Core Two Duo E6600, Win XP32 and Sonar 7. I went back to using my Frontier Dakota/Montana setup and still use it on that same system today with no issues. Conversely, the Frontier setup never worked right on my current system with Win7 x64.
I also had numerous problems years back with an old P4 Northwood system and Sonar 5. As soon as Sonar 6 came out, all the problems went away. Many Gremelins in this DAW stuff and sometimes it's hard to pin it down.