visual studio 2010 - SQL Compact Edition missing from "Data sources" -

on data sources tab, i'm trying create dataset existing database sql compact 4.0 not showing in data source part of wizard.

how ever if try add new connection on "data connections" on "server explorer" tab sql ce 4.0

i have:

1. visual studio 2010 sp1 professional
2. sql server compact 4.0 sp1 enu ctp1
3. visual studio 2010 sp1 tools sql server compact 4.0

i've brosed web, , have install visual studio 2010 sp1 tools sql server compact 4.0 did , didn't work, re-installed vs , sql ce , didn't work.

help me.

sql server compact 4.0 appears in tooling web type projects, not desktop etc.