I bought my 12" powerbook g4 in january, and i love it. Unfortunately, lately it seems to be running quite poorly. In the past week, safari has had TONS of errors, which usually are only fixed by multiple refreshes, and sometimes I have to close out the window and try to enter the site in a new window. But my main complaint is how it 'drags'. When I have quite a few safari windows open, it will go reaaaally slow. Even to get to expose sometimes will take a few seconds, but to switch between windows will go very slow, and use the loading wheel for sometimes up to 20 seconds or more. Most of these times all i have open is the safari windows, and ocassionally, itunes in the background as well. What are some things I can do to improve this? It wasn't like this when I first got it, so I'm hoping there are some things I can do to improve the speed. (If none of the suggestions work, I will probably upgrade the ram.. but i'm a bit wary on that because I have never done anything like that before and I'm nervous about unscrewing my beautiful machine ) btw- 512 mb ram, 1.5 ghz, 37.1 gb free space. (and for comparison , when i click on dashboard now, with 5 safari windows open, it opens immediately, and has 60M free ram) thanks! *edit* also, while I'm asking.. our router seems to mess up quite often.. Our computer is downstairs running windows, and then the router is so my powerbook can pick up the signal. I think that the problem is the switching of usernames and other windows related activity that are messing up the router.. does anyone think this could be it? and how do you protect your wireless from others accessing it? my cousin has a psp, and he tries to 'borrow' the signal to download porn. He claims the psp can get past password protected signals anyway. is this true?