Well, actually, I sort of know what it is. But, since I'm not technically savvy, I need to know how to avoid this problem. An example: I was surfing the web (ahem, it was a freebie pron site), and once in a while the download pop-up page would come up, indicating that it was auto-downloading something (in this specific case, something called RAM.ram). Obviously I didn't open it; I deleted it immediatley. What I want to know is how to prevent the downloadinng from happening, unless I initiate it myself. Thanks!