One choice to install VirtuaBox for an problematic computer (vboxdrv error, etc.) is download run package from Oracle site and install VirtualBox command line to the /opt folder.

1. Download VirtualBox-4.3.20-96996-Linux_x86.run for 32-bit system or VirtualBox-4.3.20-96996-Linux_amd64.run for 64-bit system.

2. Open terminal and go to the download folder
cd /path/downloads

3. See files and run installer
ls
sudo sh VirtualBox-4.3.20-96996-Linux_x86.run
… that runs 32-bit Virtualbox installer

4. Make a shortcut from /opt/VirtualBox/VirtualBox

5. There is a launcher already (copy to your desktop for example).
[Desktop Entry]
Encoding=UTF-8
Version=1.0
Name=Oracle VM VirtualBox
GenericName=Virtual Machine
Type=Application
Exec=VirtualBox %U
TryExec=VirtualBox
MimeType=application/x-virtualbox-vbox;application/x-virtualbox-vbox-extpack;application/x-virtualbox-ovf;application/x-virtualbox-ova;
DocPath=file:///opt/VirtualBox/UserManual.pdf
Icon=virtualbox
Categories=Emulator;System;X-MandrivaLinux-System;Application;
Comment=Run several virtual systems on a single host computer