I just spent almost 20 hours surfing all over the 'net trying the stupidest non-solutions to this problem. They all wanted me to do things that REQUIRE admin privileges to GET admin privileges. I was about to give up when I finally stumbled across this one. Thank you so much to Ethelgan for wording the question clearly and concisely so I could find it, and thank you to antspants for providing an easy-to-follow solution that actually works! It makes me angry that I had to fish around through so much garbage to find this. I hope the multitude of others out there are as lucky as I was. Believe me, there are a lot of people up against this same wall.