Nice upgrade from 4.1.1. I have one problem. I have 3 DCS-2132 (L, LB, LB1) cams connected via ethernet. The live sound is not present but a pulsating "White Noise" sound is on all 3. Other cameras (12 total) are OK. I tried on Windows 7 and 10 64 bit and same problem. No problem with these cameras on Ver. 4.1.1. on either computer. Any help will be appreciated.