Problem while running a newly developed game

Hi, I have a rather peculiar problem with Unity. I developed a simple physics game just for getting to know the engine, and when I build it all goes well. Then I take the .apk and install it on my phone using *adb install*, and again, all goes well. However when I run it, nothing appears for a few seconds and then it shows some weird (random) colors. I am using a Samsung Galaxy Core Prime and the latest Unity Personal edition. Here are screenshots of what happens after launch (one in portrait, one in landscape, since rotation seems to work): http://imgur.com/nQ45Pgj http://imgur.com/PZHQwhJ