Hi.

I find if you have forms mode set to manual, then navigate to where you want to  go that works just fine. As for getting the app to start so you can sign in, the best way is to switch on touch navigation, press right arrow until you hear google hangouts, then press enter.  then press the plus key on the numpad to switch back to pc mode, then type your username and password to log in. When you get to the main hangouts window press c until you hear conversations list box, then press enter. You can navigate through your list of conversations by pressing either up or down arrow keys. When you hear the conversation you want, press enter and you will be taken to that particular conversation. When you want to switch conversations, as far as I am aware there is no particular way to do this while keeping the active conversation open, so press escape to close that conversation window, then repeat the  steps to get to the new conversation you want to view.  Press c to get to the conversations list box, press enter and arrow to the conversation you want then press enter. Hope this helps, and if you have anymore questions, feel free to write back.

Jay.