Viveport apps fail to launch on VIVE headset

[jonnibravo]

Since installing the vive a week ago any app I have tried will not Launch.

 

I can access the viveport app through the headset and install the games "Knockout Boxing & Tilt Brush" but when I try to launch them they either crash or load on the desktop.  Knockout boxing loads to the desktop and responds minimally to mouse clicks and tilt brush simply says "on ther desktop" Tiltasaurus cannot detect vr.

 

I have reinstalled steam vr and drivers viveport software ect several times, I have updated all firmware and software and I have no such issues with steam vr or REVIVE, all vivports apps lauched from steam viveport or otherwise will not launch in the headset.

 

Any help greatly appriciated