From VMware to VirtualBox
Export from VMware to OVF and import the OVF in VirtualBox
“C:\Program Files (x86)\VMware\VMware Workstation\OVFTool>ovftool E:\GS2200\gs2200.vmx E:\gs2200.ovf”
How to Install Graphics and other Drivers in VM VirtualBOX
Download ISO from http://download.virtualbox.org/virtualbox/
Mount the ISO in the guest and install 32 or 64 bits VirtualBox Guest additions