I just dropped a Windows XP company image onto a HP laptop (Probook 4510s running Windows XP SP3); i wasn't sure this was going to work due to potential HAL problems (we are typically a Dell shop)...... but low and behold it worked! Well........ at least until I tried rebooting the laptop. If I attempt to restart the laptop, it will appear to be shutting down properly..... and after it goes through the "saving your settings", "Windows is shutting down" messages, the background disappears... then the screen turns blue and the mouse arrow just locks up. It will just sit like this until I physically press the power button to shutdown. The ironic thing is........ if I chose "shutdown" instead of "restart", the machine powers off normally. I've just tried flashing the BIOS to the latest version, but same thing still happens. What exactly is different about doing a shutdown vs. a restart? Anyone have any ideas?