Mint 11 -rc Invalid swap entries in fsatb

[PeggySue]

On booting Mint 11 I get the error message "/dev/mapper/cryptswap1 is not ready
My system has 3 drives with several RAID 5 arrays but Mint 11 is installed on a non-RAID partition and the swap space is three identical, non-raid partitions.
fstab correctly identifies the 3 swap partitions but then adds 3 invalid lines:
/dev/mapper/cryptswap1 none swap sw 0 0
/dev/mapper/cryptswap2 none swap sw 0 0
/dev/mapper/cryptswap3 none swap sw 0 0

Mint 9 on the same machine, same partition set up gets it right. (No /dev/mapper lines).

Running Mint 11 rc Gnome 64 bit on AMD Athlon II X3, 4 GB RAM