I found some setup instructions at the Turtle Beach site, but Windows freezes up at one point in the setup.
Below are the steps I took, but it freezes up at step number 25 after I click ok. Is it just going to think for a long time or is it something else?
 
Windows 2000 is a Business Operating System not designed for consumer use.
While most of our Software and Hardware will work in this Operating System,
support for these products is limited to the known workarounds posted on our
website.
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The Montego II Quadzilla appears to work fine in Windows 2000, using the
Windows NT 4.0 drivers from the Montego II Quadzilla Applications CD-ROM.
 
The installation instructions provided below are not supported and no
warranties or guarantees of any kind are implied or stated in this document.
 
Although you have functionality of the soundcard, the Device Manager will
report: "No drivers are installed for this device".
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To install the Montego II Quadzilla in Windows 2000 (version 5.00.2195):
 
1. Right click on My Computer, click properties.
2. Click Hardware tab.
3. Click Device Manager.
4. Click the plus sign ( + ) by Multifunction Adapters, then right-click
on Vortex Multifunction PCI Parent and click Uninstall.
5. Close Device Manager.
6. Right-click Start, then click Search...
7. Click on Tools, then Folder Options
8. Click the View tab
9. Place a dot in the "Show Hidden Files and Folders"
10. In the "Search for files or folders named" type in *.inf, for "Containing
Text" type in Vortex. Click Search Now.
11. Search finds these files:
adm_mult.inf
adm_port.inf
wdma_aur.inf
Delete all of these files.
**Be sure to empty the Recycle Bin after you have deleted the files.**
12. Restart the system by clicking Start | Shutdown | Restart.
13. At the Found New Hardware window, click Next.
14. Select "Display a list...", click Next.
15. Select "Sound, Video and Game Controllers", click Next.
16. Click Have Disk.
17. Click Browse.
18. Browse to the X:\NT directory on the Montego II Quadzilla Applications
CD-ROM (where "X:" is the drive letter of your CD-ROM drive).
Make sure OEMSETUP.INF is displayed in the "file name" field.
Then click Open.
19. Click OK.
20. At the Digital Signature Not Found window, click Yes.
21. Click on Turtle Beach Montego II Quadzilla Audio and click Next.
22. The Update Driver Warning will appear, click YES
23. In the Start Device Driver window, click Next
24. Again, the Digital Signature Not Found window will appear, click Yes
25. At the Turtle Beach Montego II Quadzilla Audio window, click OK.
26. Click Finish.
27. Click Yes to Restart.
 
 
After rebooting, the audio device listings in Device Manager should now
say "Turtle Beach Montego II Quadzilla".
 
 
NOTES:
- The Coaxial Digital Out was tested and functioned properly.
 
- Rear speakers played fine. As with Win NT 4.0, there is no A3D support
in Win 2000.
 
- These drivers are also available for download from:
 
a) our Web site:
http://www.tbeach.com (go to Sales & Support > Files & Drivers >
Montego II Quadzilla > quadvunt.zip).
 
our ftp site:
ftp://ftp.voyetra.com/pub/tbs/mtg2quad/quadvunt.zip
 
- Tested with DOP v. 3.02.05. Both MIDI and audio playback and recording work.