Hi I've had my new MacBook Pro for a couple of days now. Never had a Mac before. I've been getting to know it and also installed Adobe CS6 and MS Office on it. I've noticed the last few hours in my Downloads folder in Finder there are 2 files there... 200x200.swf 140x200_1.swf I deleted them and went about my business. Then a while later I looked inside the same folder and they were back. I deleted them again. I've also been unable to pinch/zoom or swipe backwards through pages in Safari. I restarted the machine and now all is well again. The only thing I chose to override the security and install was "Slimbatterymonitor". I have since deleted it (I presume by 'ejecting' it once I've right-clicked on the desktop icon is enough for this?) Anyway, should I be worried? The swf files haven't shown up again so far. I'm just so scared of getting a virus or something. Thanks for the replies.