Hi all, I have been a parallel user for some time. Recently I installed dual hybrid HDD (i.e. HD with some SSD) and run RAID0 mode in my Macbook Pro. I transferred my old VM into this new system. When I run parallel desktop, it start to consume my CPU power to 100% loading. I made a few test and the followings are my finding: 1) New parallel desktop and new VM are installed on RAID0 hybrid HDD with new OSX => same problem, 2) New parallel desktop and old VM are installed on RAID0 hybrid HDD with new OSX => same problem, 3) Old version of parallel desktop and old VM are installed on RAID0 hybrid HDD with new OSX => same problem, 4) Whole system transfer by migration assistant from old volume of single hybrid HDD to RAID0 hybrid HDD => same problem. 5) New parallel desktop and new VM are installed on RAID0 non-hybrid HDD with new OSX => SOLVED! Conclusion: IS PARALLEL NOT COMPATIBLE WITH RAID0 HYBRID HDD? So is there any expert here could help me to answer this problem? Is parallel not support RAID0 hybrid HDD? Best regards, Liky