Thank you very much people,but as I've just switched the computer on it came back on it's own,together with the 'refresh' button....I think it's all down to the nasty bug I've got...I did a full run with AVG this morning and it came up with 3 infections. I clicked "get rid of them" and it said "Moved object is bigger than the archive size limit....C:\programfiles\online services\BT yahoo\HPPre05.MSI" What can I do about THAT?????John