Purpose: To install Grass 6.1 on Windows thru Cygwin. Wanted to know if I still need to install the postgreSQL version on cygwin if I have a newer Windows version 8.0.3 with PostGIS working on my Win2k computer. Can grass use the 8.0.3 windows native version. If not, is it ok to have two installations of PostgreSQL? Thanks much. Prasad