Thanks for the info. As it turns out, the stutters were fairly minor in AH, but much worse in WBIII(beta).
I recently flashed my bios, updated my hpt ATA100 drivers, and tried to push my machine further into the envelope.
(KT7-RAID oldest version unstable past 104MHZ FSB)
Result : Some weird progressive failures that made windows 98SE repeatedly shoot itself in the foot with a shotgun. But in a subtle fashion that still allowed it to limp along

As a result, I've had to completely rebuild my boot drive with three windows re-installs, two registry restores from three days ago (Hey, I had a gichy feeling

) and repeated attempts to get the latest via 4in1 drivers back into my device listing. Read: 5 installs of the via stuff at least, with hand picked hardware installation at least three times. Couldn't even get the DANM CD-ROM up several times. <sigh>
In the end: Nvidia Mx2 in AGP (4X), NVTweak to turn on acceleration, SBLIVE in slot 3, Ethernet adapter (cable modem) in slot 5, latest BIOS and HPT drivers, DX8a, Nvidia 12.41,
AGP HAS IT OWN IRQ NOW, things are looking MUCH better and stutter is not an issue (havent tried WBII yet). And Im using the Via 4.32a without a hitch.
I'm locking down this Reg, and have all the files on an alternate partition incase I EVER have to reformat c:, which I barely avoided doing.
I'm sending this detailed info so others can get the "cream of the crop" info, on the cutting edge.
In any case, getting a unique IRQ for the AGP seems to help.
Just please don't use my technique

Will be checking out the NV12.42 and maybe 12.46, but things are going very well considering my system specs.
Feel free to mail me if I can help you avoid the tragic learning curve I experienced...
generino1@home.net