I have been using DD10 with no prblems for a while but have run into a problem with a new RAID 1 setup. It sees the RAID set as one drive and I have created an extra partition on it with no problem. But when I resized a partition on another drive (not part of the RAID set) it did the resize fine but along the way created a RAID conflict. The result was a 10 hour rebuild of the drives plus a Vista alert the drive was about to fail, although right now I believe this to be Vista's response to the conflict. Surely DD isn't meant to create such conflicts - and how do I avoid them? Thanks. The RAID 1 is a hardware set using two external eSATA drives controlled by a Sitecom card - which uses a Silicon Image 3512 chip.