I am working with Qt SDK 1.1.2 on Windows 7. I used the shortcuts to install Qt, Qt Mobility, and Qt Webkit on a Nokia C5-03. I run the BatteryIndicator example with my phone as the target but it failed to launch on the phone. When I copied the .sis file to the phone and installed it, it installed without any error messages (apart from requesting permission to overwrite the already existing program - which I granted). The icon appears in the phone's 'Installed Programs' but clicking (touching) it does not launch the program. I got the same problem when I just copied the .sis file for another small application to the phone and installed it from the phone (without using the phone as a target in Qt). The installation completes successfully and the icon appears but the application does not launch. The phone has one installed application form Nokia which launches properly.