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Thank you for your comments,
beso I have noticed that the pages are loading a bit slower but I can live with that for now.
Ethel, thanks, thats what I wanted to hear. :)
ACtheTroll, Recently my habits have been the Channel4 website, some online stores and a few chat forums. I was going to sign up for online banking but will reconsider that. I haven't heard of 'chkdisk', so will check that out. My previous antivirus software automatically defragged so will check if that happens with AVG.
markh1972, thats good to know too.