I have an ACER pc, running windows xp with service pack 2. Some internet sites run fine, others (ie. windows hotmail, some online shopping sites I use) will bring up the original home screen but as soon as I try to log in it just brings up a blank white screen with the little 'done' text in the bottom left hand corner.
I'm sure it's just a setting or something to do with the avast antivirus software I've loaded (which I have now removed) but I haven't a clue how to sort it.