Topic: ADI-QS level problem

SOO! i'v been having this REALLY strange thing going on with my QS.
for some reason all my outboard gear gets a VERY hot signal in (VERY HOT) even when i set it to the lowest output and input gain.
whenever i rewire it all looks good in logic. output and input set to +4 (for example) signal goes out and comes in exactly the same but when i plug some compressor (for example) in the chain i see the matters go crazy! i have to set a threshold to a positive value for it to be normal.
same goes for any outboard gear i'v tried.....any suggestions?
the weird thing is that it didn't happen when i first bought it....it started few days ago.

thnx in advance!