http://www.4shared.com/file/JA3DWd32...ATT_stuff.html
This is the WM6.1 (earliest I could find) GSM RHOD OEMDrivers and XIP. PM.dll is in the XIP.zip file.
I'm looking through the nk.exe again, and I see it does Interrupt Masking, could this be causing the issues for sound and 3d? Here's the exact text line from the nk - '[K][GuardDog][Interrupt_MASK] owner proc: %s, cur proc: %s, thrd: %08X, int_id: %08X, masked?'. It seems to mask a few other things as well.