i cannot open my inbound email attachments


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Im using AVG 8.5 as my anti virus, i want know to know how to manage to open my email attachement, because every time im trying to open the attachement yahoo is using norton to scan the attachement then after that there is notification will appeard saying that there is a virus on the attachment and was deleted, but if im trying to use other computer i was able to open it... please help me how to solve this problem.... thanks... :)