Post Fri Apr 26, 2013 6:02 am

navigation buttons function intermittent

Hi all, this is my first post.
I'm using KT with Rhino and Sketchup. I use it on my iMac in OSX Snow Leopard, my macmini running Win7 and my work PC DEL with Win7.
It works fine on all except just recently the navigation buttons for pan, roll, orbit, dolly just don't respond live any more. What I mean by that is, there appears to be no function or feedback at all on-screen until I select or deselect a material or change view from wireframe to solid. After which the screen updates with the action I've made.
I export file from SK to KT.
I have uninstalled and reinstalled.
I have absolutely no issue on my mac or macmini running WIN7.
This is important to me as we are about to install KT on our classrooms at work using the same DEL machines and I need it functioning properly.
Just to confirm... it has been running well on the DEL until just recently. So I wonder what has caused this.