I made the installation disk “lubuntu-12.04-alternate-i386.iso” for my old Dell Inspiron 8600(a 32 bit machine) I installed lubuntu (no partitions).. yay!. Was sooo happy and confident: the installed lubuntu boots; its browser connects to Internet. Yay! HOWEVER (), the desktop is way different from the one pictured in the user manuals and tutorial screenshots. It's just a blueish screen(with a kind of wavy design in the middle) and a few small icons onthe bottom left (one of which goes to the browser, and one of which lets me logoff or shutdown) and a few small icons on the bottom right. I believe I attached a jpg that I photographed.
How do I now bring in a full ubuntu with a full desktop – so that I can use it? (as it is now, it's not useful given my ignorance.) I made another disk - “ubuntu-12.04.3-desktop-1386.iso” ?? Is that the one I should use to now upgrade my lubuntu to ubuntu to get the full desktop?
How do I do it? When I now boot, then insert the ubuntu installation disk, nothing happens. Do I have to press some special keys at boot time to get it to go to the ubuntu installation disk?
As you can see, I'm a rank beginner here – I appreciate any help I can get. Maybe I need a special key sequence? … or maybe it's far more complicated … sorry for this elementary question. I'm totally stuck.