My Macintosh HD is overloaded with asl files that keeps multiplying. There are in a group called "wheel" and file type is document. Is this a type of virus because it just keeps increasing. I have downloaded an app called disk inventory. It works, but it says that I don't have permission to delete the files. I have had my company's IT person go into terminal & delete the files, but I can't do it myself. The HD keeps on filling up. That's why I think it is a virus. mac pro 2.16 GHz Intel Core Duo; operating with Leopard 10.5.7 I continually get down to 200MBs of ram. I can't keep on going to my IT guy. Has anyone had a similar situation? Thanks for any help you can provide.