psql causing a error

All of a sudden the psql for 9.0 is giving me the error below. The dump is just a partial dump. Is this a known issue? It was working for about 4 days after I installed the software until around lunch time today. I did the install using the current one-click installer provided by EnterpriseDB.

*** glibc detected *** /app/PostgreSQL/9.0/bin/psql: free(): invalid next size (fast): 0x0000000015b46b20 ***
======= Backtrace: =========
/lib64/libc.so.6[0x358167230f]
/lib64/libc.so.6(cfree+0x4b)[0x358167276b]
/app/PostgreSQL/9.0/bin/psql[0x4139b4]
/app/PostgreSQL/9.0/bin/psql[0x414e44]
/app/PostgreSQL/9.0/bin/psql[0x415a68]
/app/PostgreSQL/9.0/bin/psql[0x408d82]
/app/PostgreSQL/9.0/bin/psql[0x40d9d6]
/app/PostgreSQL/9.0/bin/psql[0x40fa7e]
/lib64/libc.so.6(__libc_start_main+0xf4)[0x358161d994]
/app/PostgreSQL/9.0/bin/psql[0x403a69]
======= Memory map: ========
00400000-00456000 r-xp 00000000 fd:01 691534 /app/PostgreSQL/9.0/bin/psql
00655000-00656000 rw-p 00055000 fd:01 691534 /app/PostgreSQL/9.0/bin/psql
00656000-00657000 rw-p 00656000 00:00 0
15b2e000-15b4f000 rw-p 15b2e000 00:00 0 [heap]
3485e00000-3485e03000 r-xp 00000000 fd:01 693115 /app/PostgreSQL/9.0/lib/libtermcap.so.2
3485e03000-3486002000 ---p 00003000 fd:01 693115 /app/PostgreSQL/9.0/lib/libtermcap.so.2
3486002000-3486003000 rw-p 00002000 fd:01 693115 /app/PostgreSQL/9.0/lib/libtermcap.so.2
354e400000-354e402000 r-xp 00000000 fd:00 229449 /lib64/libcom_err.so.2.1
354e402000-354e601000 ---p 00002000 fd:00 229449 /lib64/libcom_err.so.2.1
354e601000-354e602000 rw-p 00001000 fd:00 229449 /lib64/libcom_err.so.2.1
3581200000-358121c000 r-xp 00000000 fd:00 229379 /lib64/ld-2.5.so
358141b000-358141c000 r--p 0001b000 fd:00 229379 /lib64/ld-2.5.so
358141c000-358141d000 rw-p 0001c000 fd:00 229379 /lib64/ld-2.5.so
3581600000-358174e000 r-xp 00000000 fd:00 229386 /lib64/libc-2.5.so

Thanks,

Sandra Arnold
Senior Database Administrator
Contractor to DOE/OSTI
NCI, Inc.
Oak Ridge, TN
(865) 576-0054 (work)
(865) 567-7553 (cell)
arnolds(at)osti(dot)gov