Virtualbox ain't working for quite some time now. Last time it worked was 
when I booted with 3.19.8.1. 

Currently on up to date  4.1.6.1 force reconfigure fails against all 
kernels. 

xbps-query -l | grep header shows I have 3.19.8.1, 4.0.9.1 and 4.1.6.1 
installed. Is this a conflict and shall I just leave the latest version in 
order to sort it out ?