I am using a PowerMac G4 with OSX 10.4.11 Tiger. I have 1G memory. When I installed the OSX Tiger system, updating from OS 9.2.2, the system was really fast. Now, things have slowed noticeably. I am sure that my perusing the internet has created files and documents, hidden and otherwise, on my hard drive that are no longer used, and are clogging up the system. I would like to remove unused files and folders, but where to start? As an aside, what is TrueBlue Environment? I checked the Activity Monitor, and this seems to take up a lot of memory.