[Elecraft] New PSK set up - no joy

[w3sb]

Hello,

I'm trying to get on PSK31 with a new Windows 7 64-bit computer. I've read the owner's and Cady manuals, checked and re-checked the settings and still no joy. The setup is the K3, ASUS Xonar U7 external sound card, microKEYER interface and FLdigi. Basically I have no power output and no ALC indication. Receive is OK. Here are the K3 settings:

MODE=DATA A
MIC SEL=LINE IN
VOX=ON
VOX GN=50
LINE=40
PWR=20

In FLdidi:
PortAudio checked
CAPTURE=LINE(Xonar U7)
PLAYBACK=SPEAKERS(Xonar U7)

In FLdigi if I start a message, PTT turns on OK but turning the MIC(LINE) knob has no effect and there is no power out (Bird watt meter). When a message is started, if I look in the CONTROL PANEL > SOUND, I see modulation via the Playback (Speakers) bar graph at the 60% level.

I have the setup working on RTTY with MMTTY just fine but PSK is giving me fits. Suggestions are certainly welcome!

73, Monty W3SB