Emu XL-7 & MP-7 User's Group

I have been using the SPDIF output on my XL7 for a while now with no 
problems.  However, after upgrading to OS 2.0 I have started to 
notice a lot of crackles and pops from the XL7 which is connected to 
a Tascam TMD-1000 digital mixer.  I always leave the XL7 on (so I 
can illuminate my mixers from the goose-neck lamp), however the 
longer I leave it on the worse the problem gets sometimes causing 
VERY loud pops on my monitors.  I have to shut-down and restart the 
XL7 and the problem will be resolved temporarily, but eventually 
starts up again.  Oh... and I also get a digital input error on my 
Tascam which I nver used to see before.
Anyone else seen this with OS 2.0?
-grimley