I've reloaded WinXP Pro 4x in the last 2 days. I installed SP2 from a MS CD and had a problem with a prog. I went to "Add or Remove Programs" and found all the files, but there was a huge gap between a program beginning with "N" and the next program beginning with "P". I had to scroll down to the bottom of the window to see the next prog. The problem doesn't exist under WinXP Pro SP1 or SP1a. It only occurs with the SP2 update. It doesn't make a difference which way SP2 is installed, loaded as an update, CD, or slipstream.