Hi Barbara,

A checkbox like this is not a goal of Unchecky.
Unchecky is designed to remove checkmarks from checkboxes that offer to install sponsored or unrelated programs, or to change the homepage or the search engine. The "Keep me signed in" checkbox doesn't fit into that category.

If you often need to sign into your email account without Yahoo remembering the credentials, you might want to use incognito mode.

Done in v0.2.3, here's how it looks:

I downloaded it from here, but didn't get toolbar offers.
The report is quite old, so perhaps it's not relevant anymore.
If still relevant, feel free to leave a comment with additional information, such as the exact link or a screenshot with the offers.

Текущая версия SaveFrom: галочки снимаются.

Here is the song, Who Knows by Dima Kim:
http://rammichael.com/misc/files/Dima%20Kim%20-%20...

Dima Kim is a good friend of mine, and I'd like to thank him for letting me to use his song in the demonstration video of Unchecky, and for allowing to publish it freely.

Currently, Unchecky is not able to handle checkboxes which appear on websites.
For more info, please see:
http://unchecky.userecho.com/topic/320753-flashplayer-adobe-checkmark-to-install-macafee-on-the-download-page-is-not-removed/

Closing as duplicate.

I can't think why duplicates in the hosts file could cause problems.
Windows will probably just use one of the two entries, and will block the address regardless of which line it chooses.

As a side note, thanks for the link. It has valuable information about the fact that using the "0.0.0.0" address is a more effective solution than using "127.0.0.1"