I don't know if this relates to the Yahoo issues some are having but I just wanted to mention that with some sites when the login screen pops up you still have to position/tap the cursor in the text box. I have no login problems with any of the sites I visit but am not a Yahoo user. I'm a Linux user, desktop and on our beloved tablet. The few times I've been prevented from loging into a site the cause was that the site was Microsoft oriented and used proprietary Active-X instead of Javascript to code the login. In that case a Windows computer could log in but the tablet wouldn't be able to. The Active-X issue can also come into play when playing media on the web.