Why am i having log on problem eversince i upgraded my messenger to yahoo! messenger 8beta?

i did the same thing and now i have the same problem... very strange!!! i wonder if someone listen to us

Before a commercial software program is released to the public, it usually goes through a "beta" phase. During this stage, the software is tested for bugs, crashes, errors, inconsistencies, and any other problems. Though beta versions of software used to be made available only to developers, they are now sometimes made available for the general public to test, usually through the software company's Web site. If you choose to download, install and/or test a beta software program, don't be surprised if it has multiple problems and causes your computer to repeatedly crash. After all, it is the beta version. You can tell if a program is still in beta by checking the program's properties. Most sites will only recommend that testers and developers download these version as BETA software is by definition, still in test mode, and as such presents a certain level of risk to the end user. If you go back to the page where you downloaded this program, it distinctly says it is a BETA version I suggest you uninstall the program and go back to using the current 7.5 Version.

everyone all over the world is having problems all versions

There was an issue this intermittent login issue this morning that affected many of the Yahoo! Mail and Yahoo! Messenger users. While it wasn’t an issue to login to Yahoo! Answers, as you can see that those affected by the login issue were able to come on here and ask questions, many Yahoo! sites/products were affected. However, because I have premium (paid) Yahoo! services (i.e. Yahoo! Voice, Yahoo! Mail Plus), I was able to chat online (and call) the Yahoo! support team and just learned the problem is now solved. We can now all login to Yahoo! websites and Yahoo! Messenger.