Database just stopped working. HELP

One of the databases on our server has simply stopped. All the other dBs on
that server are unaffected.

No psql commands work, not even simple things like \d.
A vaccumdb --verbose produces the output below and then just locks up.
It doesnt seem to be in a loop as its not soaking up CPU power.
This Db has been working fine until now.

Any help would be _gratefully_ appreciated

Steve

NOTICE: --Relation pg_type--
NOTICE: Pages 3: Changed 0, Reapped 1, Empty 0, New 0; Tup 148: Vac 0,
Keep/VTL
0/0, Crash 0, UnUsed 66, MinLen 105, MaxLen 109; Re-using: Free/Avail.
Space 74
56/0; EndEmpty/Avail. Pages 0/0. Elapsed 0/0 sec.
NOTICE: Index pg_type_typname_index: Pages 8; Tuples 148: Deleted 0.
Elapsed 0/
0 sec.
NOTICE: Index pg_type_oid_index: Pages 5; Tuples 148: Deleted 0. Elapsed
0/0 se
c.
NOTICE: --Relation pg_attribute--
NOTICE: Pages 10: Changed 0, Reapped 1, Empty 0, New 0; Tup 755: Vac 0,
Keep/VT
L 0/0, Crash 0, UnUsed 25, MinLen 97, MaxLen 100; Re-using: Free/Avail.
Space 25
72/0; EndEmpty/Avail. Pages 0/0. Elapsed 0/0 sec.
NOTICE: Index pg_attribute_attrelid_index: Pages 27; Tuples 755: Deleted
0. Ela
psed 0/0 sec.
NOTICE: Index pg_attribute_relid_attnum_index: Pages 33; Tuples 755:
Deleted 0.
Elapsed 0/0 sec.
NOTICE: Index pg_attribute_relid_attnam_index: Pages 76; Tuples 755:
Deleted 0.
Elapsed 0/0 sec.
NOTICE: --Relation pg_proc--
NOTICE: Pages 21: Changed 0, Reapped 0, Empty 0, New 0; Tup 1021: Vac 0,
Keep/V
TL 0/0, Crash 0, UnUsed 0, MinLen 145, MaxLen 197; Re-using: Free/Avail.
Space 0
/0; EndEmpty/Avail. Pages 0/0. Elapsed 0/0 sec.
NOTICE: Index pg_proc_prosrc_index: Pages 7; Tuples 1021. Elapsed 0/0 sec.
NOTICE: Index pg_proc_proname_narg_type_index: Pages 17; Tuples 1021.
Elapsed 0
/0 sec.
NOTICE: Index pg_proc_oid_index: Pages 5; Tuples 1021. Elapsed 0/0 sec.
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