MikeO said:SP2 has caused problems for SCS at CMU (read school of computer science) where the back up systems do not work on systems with SP2 and these are common backup systems for networks. Retrospect is one.
What your describing is not a problem with SP2 but with the backup software not being SP2 compliant. Some vendors are are dragging their feet (IMHO) on updating there code to be SP2 compliant. I spent a couple days in training to learn about what needed to be changed in my companies apps to become SP2 compliant. Even though I'm a Java developer, Microsoft is a client of my companies so the training was provided for free so i figured i'd attend. Microsoft took a step in the right direction with regards to security but they are along way from the security of a Linux based OS.