Datareader problem in C#

Hi,

   i got a problem with C#, i am trying to read data from SQL CE 
using datareader(around 1000 records) and then i am disposing, 
closing datareader then closing database connection. if i do this for 
5-6 times without closing application, all the data still in 
the 'memory' and the pocket pc is hanging. i tried with garbage 
collector, still it is same problem. my database is in CF card. 
please help me if you can.


Thanks

DSN