Not sure this is the right forum but here goes -

I have installed Ubuntu DT as a VM in Virtual Box running on my work laptop.

I'm having a frustrating time trying to up the screen resolution and to get the Guest Additions to work.

At one point I had a large enough screen but then found I couldn't get cut and paste to work between my host (Win 7) and guest.

I reinstalled guest additions and now have a tiny screen again and still no cut and paste.

Can anyone walk me through how to resolve these issues?


brad@brad-VirtualBox:~$ lspci
00:00.0 Host bridge: Intel Corporation 440FX - 82441FX PMC [Natoma] (rev 02)
00:01.0 ISA bridge: Intel Corporation 82371SB PIIX3 ISA [Natoma/Triton II]
00:01.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
00:02.0 VGA compatible controller: InnoTek Systemberatung GmbH VirtualBox Graphics Adapter
00:03.0 Ethernet controller: Intel Corporation 82540EM Gigabit Ethernet Controller (rev 02)
00:04.0 System peripheral: InnoTek Systemberatung GmbH VirtualBox Guest Service
00:05.0 Multimedia audio controller: Intel Corporation 82801AA AC'97 Audio Controller (rev 01)
00:06.0 USB controller: Apple Inc. KeyLargo/Intrepid USB
00:07.0 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 08)
00:0d.0 SATA controller: Intel Corporation 82801HM/HEM (ICH8M/ICH8M-E) SATA Controller [AHCI mode] (rev 02)
brad@brad-VirtualBox:~$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
   1024x768       61.0* 
   800x600        61.0  
   640x480        60.0
I did have about two resolutions higher than this at one point but wasn't too sure how I got them as I just kept trying different things that turned up on Google searches until they appeared.

It would be nice if someone could spell out a more systematic approach for me...

Thaks in advance for any help