When I try to connect to a network it freezes and does absolutely nothing.. and I cannot close the frozen window no matter what I do. For example I open task manager and the green box pops up in the corner, but the actual window never does. Also sometimes my computer works just fine. Just two days ago I was able to go on there and actually get on the internet and my sidebar was working. But today (and other days before this day.. its completely random) I turn it on and my sidebar is working and nothing requiring a network connection opens, nor my internet browser (firefox).
Also it will not log off. I turn the computer off and it never gets past the logging off stage, so then I have to use the button on the front to turn it off.
I don't understand.. I have the internet, but nothing is opening... except maybe the occasional word document. I have no idea how to fix this and none of my computer friends (who know a lot about computers) have no idea whats going on.