I've been on vacation for 2 weeks and left the 6500 running while we were gone. Using TeamViewer I was even able to listen in on the bands a bit, though the latency made CWX operation unusable for all practical purposes. No big deal. When I got home, I discovered that Windows wanted to do a huge batch of upgrades that had accumulated while I was gone. I let them run and discovered that after having done that, SmartSDR was subject to horrible delay problems; black lines and gaps in the the waterfall and severe lack of synch between the audio and the panadaptor. After trying everything else I could think of, I did a Windows restore from the last backup I did before we left and now things are back to normal. My question is: Has anyone else experienced this with a recent Windows upgrade, and if so (or if not) does anyone have an idea of how to identify the culprit. I assume that at least some of the Windows upgrades are actually needed for security's sake, but I hate the idea of having to do them one at a time until I get another failure.