Woah sounds like your laptop is messing up bad..
Ok, for your opening a link in a new window: I always use the ctrl+shift method, where you hold ctrl+shift and click the link you want to open in a new window
As for your HP wireless prob, check you have no floppys/cds/dvds/wireless cards in your laptop when you startup. Then check your installed programs list by going to start-->control panel--> add or remove programs.
As for the rest of your problems, I dont know how to help you there :/