<p>I am trying to connect to simple webparts in my sharepoint team site, i need one of the webparts to filter its information based on what it recieves from another webpart</p>

<p>I am using the query string filter webpart and the a list view webpart but no matter how i connect them always i am getting this error </p>

<p>"Web Part Error:  This page has exceeded its data fetch limit for connected Web Parts. Try disconnecting one or more Web Parts to correct the problem."</p>

<p>What should I do and what am I doing wrong</p>

<p><strong>update:</strong>
 i can connect to web parts on some other pgae, but getting this error on the DispForm.aspx page of a certain item , is webpart connections not allowed there ??!!</p>

There is an issue with creating QueryString filter webparts in sharepoint, when you're not using the Web UI (I'm making an assumption that you aren't).
This fella here has a post about it and how he hacked around the issue.
http://social.msdn.microsoft.com/Forums/en-US/sharepointdevelopment/thread/0328f1b2-20cd-427f-887a-e2925bd695e3/
Another option is not using the QueryString filter web part at all, and just passing querystrings to a regular web part.
http://mo.notono.us/2008/04/moss-filter-views-through-url-query.html