Ok, I have perused the mac forums and have found many similar topics to this one but nothing that quite helps me. I work on an IT department and usually work with windows and linux machines but not macs. I found an old powerbook g4 laptop, 15" screen and all and want to purchase it from my job for a personal laptop as mine just got fried. The problem is this: when you start the computer instead of the usual apple logo that appears, a folder with an alternating finder face and a question mark appears. I have done some research and know this is due to a lack of the computer's ability to find the software it needs, or due to a bad hard drive. I replaced the hard drive with one that I know is clean and works but the same thing happens so I know that isnt the problem. I also tried resetting the PMU and PRAM to no avail. I found a couple forum links that suggest I insert the repair or install cd, I dont have the one that came with it due to the fact that it has been gathering dust in the back of the server room for 3 years and because of my lack of mac experience I dont know if I can use any install or repair cd or not. So anyway, are there any other suggestions outside of the ones I have found already or are there any tips on what disk to use? Help please!