Seven years ago this summer, I upgraded from dial-up to DSL. For the first time I could actually play videos, including live streams. And this is how things stood . . . until recently. For about a month or so (at least) I have noticed that flash videos have been playing very sluggishly, with a lot of lagging and stuttering. I have attempted some fixes which have improved YouTube, but there is still trouble elsewhere, especially live feeds, which might as well still be on dial-up. I have been told I'm not the only one having this problem, and that...