I’ve finally gotten fedup of crashes on my Galazy S I9000 and decided to do something about it. Darky’s Rom seemed a good alternative to the standard firmware. This link has a great guide to installing the Rom http://darky.ficeto.com/community/index.php?threads/guide-installing-9-3-extreme-edition-shorter-method-i9000-i9000m-only.1041/ and it worked well. However, you may want to backup your apps and contacts before you start. Since the installation, the phone is a lot faster and smoother, and has not crashed since.