1. Make sure that you don't have any spyware or virus stuff on the computer. That stuff, especially the spyware, can bring your system to a crawl.

2. 128MB of RAM is the bare minimum. Knock it up to 256 or more, and I think the computer will really wake up.

3. After doing 1 & 2 above, if it still feels slow, you can use MSConfig to stop loading unneeded services and programs, and change your display settings to disable the fancy animation effects.

A 1.1GHz CPU is more than adequate for running XP. And unless you're compiling large programs or rendering images all day, it's adequate for your applications too.

You have barely enough RAM to load Windows, which leaves nothing for your applications. That means that Windows has to use your disk to supplement the RAM, and the disk is a thousand times slower than RAM. That can really slow things down!