Hi all I have a very strange problem here. I have an iMac 27" and I keep it running 24/7. I came across a message on my iMac just before I went to bed last night for the second time; I noticed it previously about 10 days ago. I have attached a screenshot for illustration. My compute tries to run something called: classical_5.56_i686-apple-darwin.exe I do not know what this is or where it came from. As you can see in the second screenshot, it has tried to open it many times. So many that the dock has become tiny. Please help. I hope that this is not a virus in my computer. Thanks.