Sorry for the late reply, things are busy around here with the upcoming holidays and all.
I am running all of my SATA drives in AHCI mode and this is an Intel chipset motherboard--P45. IIRC, all six SATA ports are on one controller, so I don't have a way to change the mode unless I move everything over to IDE mode. I'm hesitating to do that because of the decrease in hard drive performance I expect to accompany it. So, I was hoping to find a solution that didn't require me to do that.
I've installed the recent Intel INF update and that's made no difference.
I'm more frustrated by CD-DVD Speed freaking out when it's working if I so much as open or close a tray in any of the other optical drives. Sometimes it freezes even when I don't do anything. Someone is touching my drives behind the scenes and it's causing havoc. I need to figure out what's doing that, as well. sigh The move to W7 has been a complete mess. The only thing that works better is F@H. The explorer GUI no longer lags horribly when it runs. But, only if I use Aero--which I find ugly. sigh Okay, enough ranting, sorry.
Thanks for the advice, Dee. I'll add it to the queue of things I'm going to try. I'll let everyone know what I find out--if and when I find out anything.