Epic guitar frustration

[Barnelby]

The most frustrating part about this is that it was working fine a few days ago and nothing is different about my setup....

 

Here it is in bullet points:

 

-Guitar is plugged in to m audio pre

-Pre output is going to virus synth and USB to computer

-Guitar comes through virus fine (using virus as soundcard/main out)

-Pre is selected as computer and logic input

--Input monitoring is selected on channel strip

- No audio from guitar into logic.

 

What else is there to troubleshoot?

[David Nahmani]

Did you select the Virus as an input audio device in Logic's preferences?

 

What M-Audio pre is that?

[gibsonguy88]

check you input selection, in logic