Edit Partitions dialog auto-selects unwanted partition...

I have PD7 on a 2011 MBP-15, with 2 hard disks and Linux and Win7 guest OSs installed in "BootCamp"-style partitions. Things are working OK, except for a couple of weird spots:

* Hard disk IDs sometimes switch on reboot (i.e., /dev/disk0s8 becomes /dev/disk1/s8, etc.) I'm concerned that this will cause trouble with my VMs, since the config file lists /dev/disk0s3 by name as well as UUID. I haven't tested PD7 extensively, so I don't know what happens (if the disk IDs are backwards from what I expect, I just reboot until they come up right).

* When I open the Hard Disk -> Edit Partitions dialog, the first partition (/dev/disk1s6) is always selected, even though I don't want the VM to see that partition. If I uncheck it, save, and then re-open the Edit Partitions dialog, it will be selected again.

Are these things that need to be fixed, or even worried about?