When I install Windows 7 32bit in VirtualBox on Ubuntu 32bit I've got a problem.
The Windows 7 install can't make its resolution equal my notebook screen resolution of 1280x800.
Installing Guest Additions for Windows :
The VirtualBox Windows Guest Additions are designed to be installed in a virtual machine running a Windows operating system. The following versions of Windows guests are supported:
In the "Devices" menu in the virtual machine's menu bar, VirtualBox has a handy menu item named "Install guest additions", which mounts the Guest Additions ISO file inside your virtual machine. A Windows guest should then automatically start the Guest Additions installer, which installs the Guest Additions into your Windows guest.
SOURCE -> here
type in terminal
You need to install the Windows drivers for Virtualbox in the guest. They're called VirtualBox Guest-additions and you'll find it in Virtualbox itself. It'll appear as a CD-rom in your Windows guest.