This is my first time asking for help here so please be gentle! I have an IMac G4 Tiger that I bought used off eBay about 5 years ago. It may be about 8 years old now. Recently, it has been freezing or crashing where the grey curtain appears and I get the message to shut off the power. My mouse was not working well either so I tried to open it to clean out any dust but could not. I did see a lint lump near the bottom but there may be more. I bought a used mouse on eBay but it took a week to finally get it. The new mouse is working perfectly, my imac is not crashing, and I am happy but during the last week other problems surfaced that are still not working and now I don't know it they are related to the broken or damaged mouse. 1) I was using FireFox as my main browser but it stopped opening up for me. I was able to use an old version of Internet Explorer and Safari but after a few days on the other browsers, my email stopped working and I got a message asking me to create an email account which I have done and so email is now working again. I uploaded FireFox 3 thinking that would solve my problem with FireFox but that won't open either. I have moved my old FireFox icons to trash but did I make it worse or what? 2) When looking over some of the other threads on imac's crashing or freezing up it seemed that most involved early G5's. I did not see any other posts about G4's. The most common resolution was to take to G5 back to the Apple store for a replacement card but since my G4 has no warranty that is not an option for me. I am glad that the replacement mouse has restored my imac's main function but I wonder how much longer it will run for me and what my next mac should be. I see comparable G4 Tiger's selling in the $200-$400 range on eBay so there must be some people who like them. If my computer suddenly dies, I would not be able to spend more than $1000 on a new one but I would be more inclined to get another used one since I don't really need the biggest and the best to do what I need to do. I have never had a notebook and don't really like them much. My first Imac was one of the early versions and I don't want to go that way either. Since computer prices have fallen drastically, I wonder if I would be better off with a new low end imac than a used imac that could start having problems immediately. The biggest problem I have had with my current G4 was a bad airport card that went bad right after a major relocation. My wireless modem went bad at the same time which made diagnosing the problem harder but I spent $500 on a mac expert and finally got going again. So if you have a lot of experience with the G4 Tiger, I would like to hear your opinions. If I could keep my G4 running for another 5 years, I would be thrilled. 3) About a year ago I had problems with iphoto and thought the problem was related to a corrupt file so I trashed the iphoto icon hoping to download a fresh version from the apple website. So far, I have not found anything that will allow me to download just the iphoto program and I don't want to buy a package that has all kinds of features I will not use and don't have space for. I am able to crop and edit pictures on my computer even without the iphoto software but I'm not sure why. The biggest problem is that my pics have a blank looking jpeg that makes them all look the same but I used to see a tiny image of each picture which makes it much easier to find what I'm looking for. Is this an option I just need to invoke somewhere that I haven't found yet or turned off by accident?