Please Help Me! Stuttering audio.

I don't even know how to begin with this.

I am also not sure if Sonar is a culprit in this scenario. But maybe one of you kind folks or gurus out there have seen this happen before.

I have been getting what seems to be a progressively increasing audio problem. TO hear an example of it listen tho this mp3:
http://noisevault.com/temp/help.mp3

This mp3 was made while trying to record with Sonar to this existing song. Usually the problem is like the single blip in the first half of the recording, but I am able to make it happen more frequently (like you heard in the second part) by turning on disk buffering as I did in the second part.

Each time the disk is written to (or read from?) that glitch occurs. It happens if I hit save in Sonar during playback. Obviously it wrecks havok on a recording session... and causes glitches in the recorded tracks for the lost time of the halting audio.

Thing is - it also occurs sometimes when playing back audio in Sound Forge and even Winamp.

Now... get ready for the crazy part. Here is a mostly complete list of what I have done to try to slolve this problem.

1. Change card slot locations... every permutation.
2. Update all drivers.
3. Downgrade all drivers.
4. Remove all plugins
5. Remove all uneeded hardware.
6. Defrag dskchk etc.
7. Replace power supply
8. Change PCI latency timings in every direction and combination.
9. Reinstall OS from scratch.
10. Try Sonar 4.0.0-4.0.3
11. INSTALL ENTIRELY NEW MOTHERBOARD
12. Reinstall OS AGAIN on new system.
13. Try other hard drives
14. Try other hard drive CONTROLLERS (FOUR in total!) including 2 SATA and 2 PATA

So on a fresh OS install on a brand new computer with tested memory, defraged Hard Drives of either SATA or PATA flavor I am getting this glitch in what seems to be an increasing amount.

I am starting to wonder if it is my audio controller card (HammerfallDSP)

My *CURRENT* system:
ASUS A8V Deluxe
A64 3500+, 1GB, ATI Fanless middle of the road AGP card.
2X UAD1
RME Hammerfall DSP / Digiface

What do you guys think?

Yeah... I have sessions lined up this weekend, and yes, this has all been done since 4.0.3. But the problem was creeping up on me little by little before 4.0.3

I just got off the phone with the RME US distributer. The guy was really trying to be helpful, but kept saying it was a config thing and not the card. Which it may be... but I just don't know how at this point. He is convinced that it is an IRQ conflict... but the card currently has it's own REAL IRQ (3 or 5 cant remember which) and it's own ACIP IRQ (19). It is sharing with nothing.

I am at my wits end, and yes, my business is pretty much shut down.

Your offer to loan a card is so super cool I don't even know what to say. But I hate for you to have to go to so much trouble when I am not absolutely sure if it is a solution. Too bad you are not here in Dallas.. hey any HDSP users in Dallas feeling charitable?? ;) haha..

Well wish me luck, I HAVE to get this sorted somehow.

cAPS

<deleted by the poster>

Hey caps,did you get a solution to your problem(just in case others have a similar complaint wit that s/card) That was some crazy s--t going on there.