How to uninstall android -x86 from Virtualbox?

[Bini]

Hi
I have successfully installed Android x86 as per the installation instructions but when i open android I get two options:
1) Android x86 20120130
2) Android x86 20120130 (debug mode)

I tired both options .. it takes me to the android screen with date ; charging % ; a lock;
No internet connection.

I have no idea, what should i do next? I thought of uninstalling it and reinstalling it again but I don't know how to do that too.

Please helppppp.

My System: Mac OS X 10.8

[noteirak]

Android is not a supported OS of Virtualbox, so there is no guarantee it will work.

[mpack]

If Android is expecting a wireless access connection, it will not find one in a VirtualBox VM except perhaps through a USB wireless dongle - which I would lack faith in for other reasons (timing sensitive USB devices = not good in a VM).

[mpack]

Better late than never I suppose. I recently got myself an Android tablet (Google/Samsung Nexus 10), which kindled a curiousity in how well Android-x86 runs under VirtualBox. I've installed it from the ISO and managed to get it working quite well. Internet access works fine using the default "Browser" app using Ethernet - you do not need a wireless NIC.

Only problem I've had is the teeny default display size, and no way to change it from inside Android (it expects a tablet to have a fixed native resolution). However the Android hd is formatted using the ext3 filesystem, so I attached the disk to a Linux VM which allowed me to edit the grub boot menu list using gedit, adding the term "UVESA_MODE=1024x768" to the kernel line. I'm aware that in theory you can edit (press 'e') on the grub boot menu itself, but I find that very awkward what with the primitive handling of horizontal scrolling.

VirtualBox or Android only seems to support a very few video modes, I can't get any portrait-ratio modes to work at all, regardless of whether I define VBox custom VESA modes or not.