My friend who works in an office building is having two problems with his macs. The first, is a g4 tower running 10.3.9. He is the only one plugged into the DSL, yet it takes forever just to load a website. i hooked up my computer had regular speeds. What are some troubleshooting steps I should attempt? The second problem is that he *says* his mac has a virus because everytime he sends attachments, the receiver does not get them, because they are said to have viruses. Also need help troubleshooting. Thanks in advance, and sorry for such few details. Thanks.