So, you’ve got Drudge open in a separate tab, and when you switch to that tab, it refreshes the page? I’ve never seen that, sorry. If I had to guess, I would say that it is a script-related behavior, so you might want to play with the security settings for java, java applets, and active scripting, to see if that resolves it. However, those settings usually need to be enabled for a lot of modern webpages to work right.
It did exactly that twice, the first two times after I disabled Allow Meta Refresh. However, it has not repeated this for a number of times since those first two. I'll just ignore it, at least for now.
Thanks for the good advice.