Not very helpful but I've had PlayIt Live running on relatively low spec Windows 7 64 bit machines for weeks at a time without issue.
Where I have had problems it tends to be sound card related.
My approach is to have the absolute minimum on the machine beyond a clean operating system install (patched up to date) and the sound card drivers.
I don't have experience of the Digigram cards but I would stick to either input or output on a single card.
I have had various cards and I have not found a setup where bothoutput and input on the same card works well.
ASIO out and a different (non ASIO) card for the input would be my suggestion. In a setup where reliability matters streaming using B.U.T.T. or similar on a different (dedicated) machine would be my recommendation.
I don't have a screenshot, but it is saying that an exception has occurred after a couple days of 24/7 playing. Has anyone had any trouble with this. I love PIL, and I bought the processing plugin, but being a radio station I can't drop out.
I'll try to get a pic as soon as I can. Shouldn't be a computer issue, this pc has an AMD 8 core with 10 GB ram. Win 7 64