7048 Stack Weirdness

We are using two 7048 switches stacked with each 2 CX4 Expansion card with firmware 5.1.1.7.

Everything seems to be working allright, but.. and now its getting wierd... the Slot summary doesnt show one card on one of the switches:

              Admin   Power          Configured Card
Slot  Status  State   State             Model ID              Pluggable
----- ------ ------- ------- -------------------------------- ---------
1/0   Full   Enable  Enable  PowerConnect 7048                   No
1/1   Empty  Enable  Enable                                      Yes
1/2   Full   Enable  Enable  CX4 Card                            Yes
2/0   Full   Enable  Enable  PowerConnect 7048                   No
2/1   Full   Enable  Enable  CX4 Card                            Yes
2/2   Full   Enable  Enable  CX4 Card                            Yes

Also the show switch stack-ports is missing the installed link, we are missing the Te1/1/1 and the Te1/1/2:

console#show switch stack-ports

                 Configured  Running
                   Stack      Stack      Link       Link
   Interface       Mode       Mode       Status     Speed (Gb/s)
---------------- ---------- ---------- ------------ ------------
Te1/2/1          Stack      Stack      Link Up      16
Te1/2/2          Stack      Stack      Link Up      16
Te2/1/1          Stack      Stack      Link Up      16
Te2/1/2          Stack      Stack      Link Up      16
Te2/2/1          Stack      Stack      Link Up      16
Te2/2/2          Stack      Stack      Link Up      16

now for thewierdness, a show switch stack-ports diag shows the following:

console#show switch stack-ports diag

Legend:

RBYT : Received Bytes                         RPKT : Received Packets
TBYT : Transmitted Bytes                      TPKT : Transmitted Packets
RFCS : Received Frame Check Sequence Errors   RFRG : Received Fragment Errors
RJBR : Received Jabber Errors                 RUNT : Received Packets with size 2 to 63 bytes
RUND : Received Undersize Packets             ROVR : Received Oversize Packets
TFCS : Transmit Frame Check Sequence Errors   TERR : Transmit Errors


RBYT:168344763 RPKT:410310150 TBYT:1513780979 TPKT:305590612
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0


RBYT:48733953 RPKT:273085726 TBYT:3003676544 TPKT:81921342
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

Te1/2/1
RBYT:433096651 RPKT:149282071 TBYT:1045153477 TPKT:108917502
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
--More-- or (q)uit
TFCS:0 TERR:0

Te1/2/2
RBYT:3094951713 RPKT:82734943 TBYT:2093287763 TPKT:308008826
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

Te2/1/1
RBYT:1514099079 RPKT:305591016 TBYT:170710979 TPKT:410311752
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

Te2/1/2
RBYT:3003913976 RPKT:81921419 TBYT:48795551 TPKT:273085766
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

Te2/2/1
RBYT:1045219063 RPKT:108917562 TBYT:433202019 TPKT:149282213
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

Te2/2/2
--More-- or (q)uit
RBYT:2095149595 RPKT:308010264 TBYT:3095069063 TPKT:82735019
RFCS:0 RFRG:0 RJBR:0 RUND:0 ROVR:0 RUNT:0
TFCS:0 TERR:0

It does show statistics on the not recognised installed module..... in the webpage it is shown as :

So, what to do now?. is it safe to re-insert the CX4 card and if so, is it hot plugable?. And how is it possible that there is going traffic through that card while it doesnt recognizes it...