PostgreSQL No Longer Handles Mixed Case Sequences

Hello,
I have just updated to PostgreSQL 7.2.2. I am utilising tables with
mixed case table and field names. I can now no longer insert data into
these tables as shown by the following psql interchange:

sharetrack=> \d "T_Joint"
Table "T_Joint"

Column | Type | Modifiers
---------+-----------------------+--------------------------------------------------
id | integer | not null default nextval('T_Joint_id_seq'::text)
epic | character(4) |
code | character(1) | not null
number | integer | not null
price | double precision | not null
costs | double precision | not null
condate | date | not null
effdate | date | not null
comment | character varying(40) |

Unique keys: T_Joint_id_key

Triggers: RI_ConstraintTrigger_17019

sharetrack=> \ds

List of relations

Name | Type | Owner
-----------------+----------+-------
T_Joint_id_seq | sequence | brian
T_Tester_id_seq | sequence | brian
splits_id_seq | sequence | brian
(3 rows)

sharetrack=> INSERT INTO "T_Tester" (epic,code,number,price,costs,condate,effdate,comment) VALUES ('37RL','B','1','36750','800','1984-12-01','1984-12-01','');

ERROR: pg_aclcheck: class "t_tester_id_seq" not found

sharetrack=>

So although the sequence reference name is stored in mixed case in the
table, it gets converted to lower case when processing.

Please can you advise if there is a fix available or any circumvention
apart from redefining all affected tables.

Thanks,
Brian