Error Message: No response from the backendB

-- System Information --
Platform: Windows 2000
Version: 5.0
Build: 2195 Service Pack 4
-- Application Information --
Name: pgAdmin II
Version: 1.6.0
Descripton:
Name: pgSchema
Version: 1.6.0
Descripton: PostgreSQL Schema Objects v1.6.0
-- Database Information --
Version: 7.4.2
Descripton: PostgreSQL 7.4.2 on i686-pc-linux-gnu, compiled by GCC
gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-24)
-- Driver Information --
Name: PostgreSQL
Version: 7.3.100
Descripton: PostgreSQL 7.4.2 on i686-pc-linux-gnu, compiled by GCC
gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-24)
-- Error Information --
Description: No response from the backend

_____

B
No response from the backend
Number: -2147467259
Routine: pgAdmin II:frmMain.svServer
************************************************************
Insert your comment:
I am doing a simple manual update of data through the SQL window. I am
having problems on the new version of pgsql...we are running 7.3 in
another environment, and it works fine. Any ideas of the problem? Did
I miss a conf setting? Selects work fine, but I can't write to the
tables at all.

Thanks in advance,

Matthew