Getting A Pool Timeout Error

I have pages which are using a master page.

An example page on my site would be the homepage, it makes 3 connections to mssql.

1) Get the keywords of the page

2) Get a list of news articles

3) Get the content of the page.

 When I visual web express to debug the site it's giving me a pool error message, neither can I get the site to load directly via IIS. It says theres been a pool timeout.

I've read on the internet about making sure connections are closed when you are finished and I've checked that all database connections are closed using

finally
{
conn.Close();
}

 does anyone have any idea why I would be having this problem?

How can I see what connections the site is opening, or maybe theres a limit on my server?

I'm using my own test server running windows 2003 and IIS