Eons ago, yahoo I set myyahoo as home page and couldn't shake if for love or money. Last weekend, I did a disk cleanup, and boy was it thourough. A2k no longer logged in automatically, and several other changes occured, including a few of my "Favorites" gone missing. No problem; no explanation needed, but on impulse, I again set a2k as home page. This time it stuck.
Just thought I would pass along an interesting discovery.
Yahoo getting intrusive? for reference.