Filter value selection-in Bex Queries

Hi,

I have a situtation, there is an existing cube which is loaded from R/3 system.this cube is already having data.

Now i am loading data using flat into the same cube.

when i try to run the query . do a filter value selection.

i am not able to see the characterstics which i loaded into the cube using flat file.

only values in Fact table option is checked.

even if i change only value from info provider I am not getting

any results.

from the list cube I can able to see the values which i loaded.

any help would be really appreciated.

Thanks

Keith.