I installed a larger HD as a slave drive and did a copy hard drive function.  4 hours later the copy was finished.  I swapped the two drives around and tried to boot the PC.  I received the following error message...Windows could not start because of a computer disk hardware config problem.  Could not read from the selected boot disk.  Check boot path & disk hardware.

Using win xp pro.

Should I have given the copy a drive letter when I copied?  I selected none.  I did copy the MBR and I selected "select drive active for booting".  Both HDs are set to cable follow for master slave.  All connections ok and PC booted ok when I swapped the drives back again.

Dell Dimension 8300.  Any thoughts??

One other thing...when I restored the drives back to original configuration, "My Computer" doesn't show the slave drive, but the copy went ok and was completed.