I've been running the beta version of Parallels very successfully, and out of no where on a random startup I got the error, "ntoskrnl.exe missing" Now, parallels, and this install of XP were working. I did nothing out of the ordinary, including turning off the system by shutting down in the XP windows rather than a hard shut down. Help, I am not an XP guru, and have no idea how to replace this file, or why this error came up in the first place. I've searched the net, and found various answers, but have no idea how to address them in paralells. Can someone provide me with a step by step direction? Please? Oh, and thank you ahead of time!