Ok i have the stupid MBR problem and everytime i start the computer and if no WIndows XP CD iis inside the CD-ROM the windows wont start and it keep saying ..

Master Boot Record has changed.
Press any key to enter to restore master boot or something...

i tried doing fixmbr but didnt help and it keeps coming...if i dnt insert the CD inside...so how do i fix this problem anyone help? thanks!