Once little trick :
Before opening ANY attachment, click on it ONCE and then click "save as..." so you can see it's full name. Often something that looks like nudeannie.jpg is really nudeannie.jpg.vbs I just made these filesnames up but you get the idea.
I get anywhere between 50 and 200 emails per day and it's a rare week when I don't get sent at least one virus. I treat EVERY email I get as potentially dangerous.
---PPRuNe Dispatcher