[RTTY] digital problem

[Tom Johnson]

I am running Windows XP and  recently had a new motherboard installed, and 
now running Realtech AC97 as a driver. Since then, I have lost receive 
capability on MMTTY and all other digital modes. I can turn off the line in 
mute and hear the incoming audio on the PC, but no scope data or waterfall 
and no print. Transmit scope/waterfall and print is normal. I have tried 
swapping the plugs on the computer, checking the input options and 
everything else I can think of. Does anybody have any ideas on this 
situation? Without RTTY I am incomplete!!! Thanks.
TOM
N4TJ