My little labs redeye doesnt seem to want to work. I am running a DI track recorded with a Toneport DI-G out of my Saffire pro 26io output 3 as a mono track mono output in Cubase. I am running a balanced TRS to XLR female into the line in on the back of the redeye. The reamp/DI button is pushed in. I am then running a guitar cable from the reamp out back into the Toneport DI-G which is running into a line input on preamp 8 of my Saffire (not using a real amp at the moment as I just want to test the signal). There seems to be nothing coming out of my redeye, there was ground hum but pushing the lift button remedied this. Also when I push the reamp/DI button out (just in case I had it the wrong way around) there is a screaming feedback. Any help on this would be greatly appreciated.