I use Parallels (Version 4.0.3844.409800 - German) with a MacPro. This device includes 2 HDs with media-identification disk0 and disk1, which are identical at size and brand. disk0 = WDC WD6400AAKS-41H2B0 (2 partitions: MacintoshHD = disk0s2 and Bootcamp = disk0s3) disk1 = WDC WD6400AAKS-41H2B0 (3 partitions: such as aa = disk1s2, bb = disk1s3 and cc = disk1s4) Each the second or third time, when I started Parallels it does not find the right volume. It tries to start with the partition disk1s3 (which does not includes Bootcamp) instead of disk0s3. So it cannot find a system, and freezes. I have deleted the virtual machine and created a new one with the extistent Bootcamp partition. That is no a big problem but an inconveniently job. Here are the config.pvs lines: Section HDD: <Hdd> <Index>0</Index> <Enabled>1</Enabled> <Connected>1</Connected> <EmulatedType>3</EmulatedType> <SystemName>WDC WD6400AAKS-41H2B0.hdd</SystemName> <UserFriendlyName>WDC WD6400AAKS-41H2B0</UserFriendlyName> <Remote>0</Remote> <InterfaceType>0</InterfaceType> <StackIndex>0</StackIndex> <DiskType>1</DiskType> <Size>610480</Size> <SizeOnDisk>0</SizeOnDisk> <Passthrough>0</Passthrough> <Splitted>0</Splitted> <DiskVersion>2</DiskVersion> <Partition> <SystemName>/dev/disk0s3</SystemName> </Partition> </Hdd> What can I do, so that Parallels will find the right partition by itsself?