[RTTY] Question

[DickT-W0RAA]

I am using a Yaesu FT-950 with a SignaLink USB Interface.  Up until this 
weekend,
it has performed flawlessly in RTTY mode.  I usuall run PKT | LSB when 
running in
digital modes and have never had a problem.

Now, I cannot get the 950 to send out a signal when I send a macro using my
Writelog program (latest version).  I am not getting any RTTY output using 
MMTTY
either.

It shows that I am transmitting, but there is no
signal going out.  Zero power out.  In all other modes I ama getting full 
100 watts
power out (SSB/CW, etc).

I have not changed anythinh since the last contest,  Might anybody have any
suggestions as to where I should be looking?  The problem is only in RTTY 
mode.

TIA<

Dick
W0RAA