Please help me resize the screen to full size its really irritating me
And it wont detect my router i want to be able to connect to the internet from there....
1.
Press <Home key> + F to go full-screen. The instructions are there at the settings.
2.
It won't detect your router.... v-i-r-t-u-a-l.... you have to go to the settings of the specific virtual machine and enable an ethernet interface. Then it will use your current connnection as a wired connection.
Have you installed the guest additions? Once that's done <host> F for full screen or <host> L for seamless mode, very cool. (<host> is normally Right-Ctrl)
Hmm, I've never had to set anything up to be able to connect to the internet from inside a virtual machine. Try connecting with all the settings on automatic (ie DHCP etc) and see if that works. I'm not on my virtual box computer atm, but see where you get and I can help later.