Ok, just spent 1400 UK pounds ($2000) on a new CPU. All works great except Cyberlink Power DVD 6 crashes on install with an IKERNEL error. Prod support useless (as expected). Tried de-installing Norton AV 6, upgrading IKERNEL.EXE. de-frag, re-boot, deleting ... installshield/engine directory....... the list goes on. Now CL support have given up..... PLEASE does anyone have any clue as to what I should try? All other programs have loaded with InstallShield with no problems what-so-ever. Cheers.