hi i am pretty new to macs. i have a macbook pro and think i have some sort of bug in it. i know there are supposedly no virus' for macs but it acts liker there is one. every once in awhile safari closes all my open pages or tabs and up comes a box the says ignore, report, or relaunch. i have reported it a time or two and no response. i was thinking maby there is some virus scan or clean up software or something. i will admit this computer has seen some questionably websites but i could be on yahoo and just yahoo and it still dose it randomly please help thank you