I just post random stuff i found out myself. Here was one problem that bugged me for 2 days.
Everytime i press the Menu button, instead of the menu options will show up, its the Switch Application Buttons that is showin up. Some said, when you press it quicker the menu will show up and when you press it longer the Switch Application will show up. That is true but actually you can control it!
Go to: Options > Screen/Keyboard > Key Rate
You can set it to normal (which is normal)
Fast = when you click it for 1.5 secs the switch application will show up instead of the menu button. just put it back to normal.
*Coz some said in the forum to put it to fast without the explanation why. It bugged me for 2 days! lol