first, try using a different browser, internet explorer should already be on your computer so try that.
If that freezes, at bootup press f8 (it is usually f8, sometimes f3) to go to the boot options and boot in safe mode with networking. Try using it then and if it works you know it isn't your isp but most probably a hardware conflict.
Try on another computer, if it works on that (while on your internet connection) then you know that it is your computer that has the issue, not your network or myspace.
That should give you a bit to be going on for now. In future though, make your question and problem more clear by giving more details and using full correct english (if you aren't using english as first language you obviously you may not be able do that)