Unable to load data from APO despite correct RFC Connections...

Hi,

I am facing the following problem :

My requirement is to load from APO in BW...

When I schedule the load in BW, it is failing..

In the "Step-by-Step Analysis" tab on the monitor screen, I see the "RFC Connection Successful" as grey...

I checked the RFC connection.They seem to be fine..( In fact, i tried loading data from the same source system for another Cube and it completed successfully"...)

I have done the "generate DataSource" in APO and then "Replicate DataSource" in BW.Also, run the ACTIVATE_TRANSTRUCTURE.." program as well..but to no avail.

The load was running correctly few months back..but now, for some reason it is not..

Can you plz help me with this..

Thanks in advance,

Punkuj..