hmm... i didn't know you were running xp. can't help you much there, as i'm using win98. i bet the root of you problem is in the aardvark beta drivers, but you'd have to check with them first, as i wouldn't be able to step you through a xp setup optimization for audio.
this is what i got from aarkdvark's support, maybe it will help you:
Be sure DMA is enabled on your hard drives.
Go to START | SETTINGS | CONTROL PANEL, select SYSTEM, go to the DEVICE
MANGER tab.
Open the "Disk drives" branch, select each IDE disk listed, go to the
"Settings" tab, and put a checkmark in "DMA"
There may be a program running in the background interfering with the
Q10, here's how to minimize the chances of that:
Go to START | RUN, type MSCONFIG, then click OK. Go to the STARTUP tab
and remove checkmarks from everything except "System Tray" and "scan
registry"
You may want to check for device conflicts, Aardvark or otherwise.
Although we don't use IRQs, our devices can sometimes aggravate other IRQ
conflicts. Go to START | PROGRAMS | ACCESSORIES | SYSTEM TOOLS |
SYSTEM INFORMATION
Once you're in system information, go to HARDWARE RESOURCES, the
CONFLICTS/SHARING. You'll see a list of all devices that are assigned the
same IRQ. Let me know what is on this. USB and video tend to be the
worst at sharing.
Even if no conflicts are mentioned here, it does not necessarily mean
that another device is not conflicting. It may also help to go to
device manager, and disable devices such as other soundcards, network
adapters, USB ports and modems, to see if the presence of that device is what
is interfering with the Aardvark.