For the last day or so, my game browser has periodically been redirected to a number of other web sites (for a while, it was a couple of phishing scam survey pages; but there have been others now). I'm pretty sure that this is ad-related (though I did run a malware check just to be sure, which came up clean). I have plenty of browser tabs open, and they're all unaffected, but whenever I open a new Utopia tab, within a fairly short period of time - whether I'm actively using it or just letting it idle - it'll kick over to another website.