Anyone have any probs with SP1? I installed SP1 then Intel App Acc then windows wouldnt boot.

Try going into Windows Safe-Mode and remove SP1 by way of Add\Remove Programs. Hold down F8 during boot. ------------ To prepare for an SP1 installation 1. If you use Faster User Switching, make sure that all other users are logged off from the computer and that only you are logged on to the computer; you must be logged on as an administrator. 2. In the event that the installation fails, you need to ensure that you get the most out of data recovery. On computers running Windows XP Professional, to maximize data retrieval, create an Automated System Recovery (ASR) before you begin installation. For detailed instructions, see "To create an Automated System Recovery set using Backup" or "To recover from a system failure using Automated System Recovery" in Windows XP Help and Support Center. 3. Perform a full backup of the files that you keep on your computer. 4. Stop any real-time virus checkers before you install SP1 because they might interfere with your installation. (Be sure to restart the virus checkers after you install SP1.) Check the space requirements for installing SP1 on your computer. See article Q326583, "Hard Disk Space Requirements for Windows XP Service Pack 1," in the Microsoft Knowledge Base. Important Automated System Recovery (ASR) will not restore your data files. For more information, see "Backing up files and folders," "Restoring files and folders," and "To create an Automated System Recovery set using Backup" in the Windows XP Help and Support Center. Caution Before you begin the installation, remember to perform a complete back up of all your files on your computer and close all open programs.