Arch Linux

Description:

On a Windows 7 x86-64 host and a x86-64 Arch guest, with virtualbox 5, any combination of packages:

linux 4.1.4-1
virtualbox-guest-modules 5.0.0-2
virtualbox-guest-utils 5.0.0-1

has a few problems:
* 2nd, 3rd, etc. screen not recognized
* selecting USB-3.0 breaks USB completely

Going back to 4.1.2-2, 4.3.28-4 and 4.3.28-1, respectively, avoids these issues.
However, just having virtualbox 5 on the host without updating the guest modules breaks file shares and possibly other features as well, i.e. last working combination requires VB 4.3.30.

This may be a problem with the host side of VB, but there's a chance it's the guest side.

Steps to reproduce:

Self-explanatory.