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Thank you everybody, my epert friend has spent 4 hours on it and cleaned up the hardrive: he said it was not virus, just my profile corrupte; well it was enough to mess me ujp.
Now hoewever I have another problem: files and attachements I could openwithout any difficulty befoore it was cleaned up, now can not. Tried al programs I could think of, have installed or browsed on the net, still no success. So one probolem solved lead to an other!
If anyone can give advice, I shall be very grateful, thanks to all.
files are some doc, some pictures/videos sent by email.
thank you again.