When I try to use Mingle2 I repeatedly get switched to "Mate 1" or another of many similar dating sites. I don't want to join these sites and spend countless hours re-entering my info,selecting passwords,downloading photos,etc. Any suggestions?

stop clicking on the links to those sites...it's kinda confusing cause advertising for those sites on mingle2 is hard to distinguish from mingle2 content

however, i think you have a browser re-direct virus - type mingle2.com into your browser address bar - if you end up somewhere other than mingle2.com you have a browser re-direct virus

DISCONTINUE online banking, or anything that requires privacy

You know on a lot of sites whilst a page is loading what you click before the page has finished loading is not the same part of the screen as when the page has loaded. In other words you are clicking on the advertisement which obviously takes you to another site. Perhaps that is what is happening. You need to wait till a page has finished loading on to your screen before clicking whatever you need to. If I am off the mark here I apologise, but I have noticed exactly the same as you and now wait those extra couple of seconds till a page has fully loaded.

All good advice.
As it does not sound like a Mingle2 issue.
Indeed the only time it happens to me is
as 5apphire described.