I run on my MDD G4 PPC OSX 10.5, Sophos and Clean my Mac To day i found the Clean my Mac in the Bin. (Some other Applications are gone already) I found out as i just had emptied the Bin and was wundering what is left in when i waked up. I had to move it out,back to the Application. Yesterday i watched Bud Spencer on youtube (Firefox). http://www.youtube.com/watch?v=ZnxwR99RLp0&feature=related At End of Part 1 started the Part new,and new again and again. Normaly it would finish after the Part till i do anything. The other time i watched Karl farkas,an Austrian Comedian on Youtube. Its in Austrian Dialect and not easy to understand if you dont know the Slang. Firefox crashed all few Minutes. Emails are missing from my Email account and other special Things happening. I have Firewall and Stealth Mode,and run Sophos. Now,i have the Idea that someone is inside. I got the G4 few month ago with OSX 10.5 pre-installed. I have no Disc to re-install it and can't find OSX 10.5 to buy. What can i do? Or what is happening?