SQL 2005 Performance Limits

Hi all,

I am migrating a data warehouse from SQL 2000 to 2005. So far, I have been able to convert all DTS's on the old server and most tables and users. I am having problems with some of my views, though. A view which involves over 5 tables, and some sub-views of those tables runs perfectly on SQL 2000, but on 2005 I get a Query Timed out Message. A typical run of this view can return from 200-1000 records. My guess is that it gets stuck somewhere in the subviews it has to run. So I wonder, what are the limitations of SQL 2005 concerning Queries and sub-queries (how many subqueries can a query have without timing out?). I mean, I would expect 2005 to have more processing capacity than SQL 2000 (on which this query runs perfectly). I have run some queries which don't run on 2000 but do run on 2005 and return over 4000 records.

Or is there some setting I haven't adjusted, like the time it takes for a query to time out? How would I adjust this, then?

Many thanks for the info.