Problem with my fx-48mr

My fx-4mr died, so i bought a fx3u-48m.

Problem:
-when i download the program from fx-4mr to fx3u-48m its said :
The PLC type set by the program differs from the connected PLC type. Execute again
after changing the PLC type to match the PLC type you are connecting to.

I understand what that means but I do not know how to do that.
I am using GX Developer version 8.2w.

Thanks

Click Project. in top left hand corner. Chose Change PLC type from the dropdown menu. Then change to Fx3u. It will ask, Are you sure you want to change. OK this and you should be ready to go. Regards Badger.

YOU are the man!!!