Hi all, I compiled the whole stack and managed to run the example application in the S60 emulator. Then I managed to create the sis file out of it (a 315KB sis file including hopefully all the libraries). However, when I tried to install it in a S60 product phone (a very new model, with the latest Symbian version), it says that I have some certificate problem. I tried to sign the application but I got the same problem. Can it be installed in a common S60 product phone? Thanks in advance! BR Iv?n Arias Rodr?guez