Garbled class attribute?

[Geoff Silver]

I have a bunch of users which should have a class attribute returned upon 
successful authentication.  Their entries look something like:

bob       NAS-IP-Address == 172.31.33.66, Hint==HasSlash Auth-Type:=Accept
           Class = "OU=MY_CORP", Filter-Id = "SPCCOLO_O", 
Split-Tunneling-Policy = 1, Split-Tunnel-List = "SPCCOLO_ST"

What they're actually getting back is:

Packet-Type = Access-Accept
User-Name = "bob"
Class = 0x3739774831423272375053516a71424143444358434979507544493d
Filter-Id = "SPCCOLO_O"
Split-Tunneling-Policy = 1
Split-Tunnel-List = "SPCCOLO_ST"