resolution windows xp 640x480

[AlexanderSh88]

Я установил Windows XP на виртуальную машину, и клонировал её три раза. Теперь у меня на двух машинах стоит разрешение 640x480, а на третьей и четвертой минимальное разрешение которое можно выставить в свойствах 800x600. куда делась разрешение 640x480, Как сделать так чтобы его можно было выбрать?

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I installed Windows XP on a virtual machine, and cloned it three times. Now I have on two machines a resolution of 640x480, and on the third and fourth the minimum resolution that can be set in the properties 800x600. Where did the 640x480 resolution go, how to make it so that you can choose it?

[BillG]

Have you installed the guest additions in the virtual machines?

@mpack looks like he has indistinguishable vms as well as indistinguishable USB devices.

[mpack]

the minimum resolution that can be set in the properties 800x600.

I would like to know what "the properties" means in this context. Are we talking about a VirtualBox feature, or the guest's display settings?