multi-touch help

I am creating a game that involves a joystick and a jump arrow. Currently, I am using a trial of corona on windows. I need the user to be able to move and jump at the same time, but in testing on my galaxy s I have found that multi touch its not functioning properly. Do I have to do anything else to ger it to function besides call the 'system.activate("multitoucg [import]uid: 35210 topic_id: 7280 reply_id: 307280[/import]

I apologize about the end of that question. The forum wont let me edit it.

Must I do anything besides call [code]system.activate( “multitouch” ) [import]uid: 35210 topic_id: 7280 reply_id: 25569[/import]