Problem with Guest Additions for Win 7 Guest on Ubuntu 13.10

[Phil H]

I am attempting to install Guest Additions for a Window 7 64-bit Home Premium instance on VirtualBox ver. 4.2.16 running on Ubuntu 13.10.

The installation manual says, in part:
"In the "Devices" menu in the virtual machine's menu bar, VirtualBox has a handy menu item named "Insert Guest Additions CD image", which mounts the Guest Additions ISO file inside your virtual machine."

I have the correct Guest Additions ISO file, but there is no "Devices menu in the virtual machine's menu bar" because I can't navigate to it. The problem appears to be the Win 7 VM session captures control of the mouse. I can get control of the keyboard with the Right Ctrl key, but not the mouse.

This is different behavior then I experience with a Windows XP VM session. In the Windows VM, I can install the Guest Additions without difficulty as it does not capture control of the mouse. That environment appears to be running nominally.

So, is there a keyboard shortcut for Virtualbox ver. 4.2.16 running on Ubuntu 13.10 that I can use to get access to items in the Devices menu once I begin the Windows 7 installation process so I can load the Guest Additions?

[mpack]

Hit the host key (usually the right-ctrl key) to uncapture the mouse.

[Phil H]

As I said in my posting, the host key uncaptures the keyboard but not the mouse.

[socratis]

Shut down guest. Mount the GAs in the CD. Launch the guest.

[Martin]

As I said in my posting, the host key uncaptures the keyboard but not the mouse.

Did you define an USB filter which catches your mouse?

[Phil H]

As I said in my posting, the host key uncaptures the keyboard but not the mouse.

Did you define an USB filter which catches your mouse?

Yep...that was it exactly. Thanks!