Here's a tip if you're using mysql 5.0 or higher with rflow collector. I was having problems with writing to the database, and after much trial and error this fixed it. Download the MYSQL gui tools (notably MYSQL ADministrator) Log in to mysql administrator and make sure you add a user with the username and password specified in rflow collector. Give it full access to the rflow schema. Go to Startup Variables > security Make sure Use Old Passwords is checked. Stop and restart the mysql service. Voila. Craig Bolland.