Open SqlClient connection .NET/ Win CE

I have a program that is written in .NET that is used in a Windows CE Pocket PC. The problem I am having is openening a sql connection to my sql 2000 database.
I believe the issue is because the server that is running sql is svr 2003 and I believe it is blocking it somewhere.

I have tried many diverent connection strings and I work fine to any svr that is running svr2000 but the svr 2003 I can’t get a connection to.

Also since this program is being run on a Pocket PC it isn’t on our domain but that shouldn’t be an issue because it works fine connection to a svr 2k with sql 2000.