I have a severely slow internet connection, so I downloaded lubuntu-12.04-desktop-i386.iso (it took 11 hours).
Burned it to CD and verified it OK.
Booted from the CD and got a Lubuntu menu.
Selected Try without installing.
After about a minute of loading, the dots stop changing and nothing happens.
Repeated many times.
Tried Install to hard drive - same thing.
Tried Check files for errors - OK.
Burned another DVD and started again - same thing.
Burned another DVD using a different DVD drive and started again - same thing.
Meanwhile Win 7 Ult(32) runs fine.
What next ?
BTW, I looked up the packages bundled in Lubuntu and there is all kinds of bloatware in there that I don't want - video, music, office-ware, games, programming languages. Is there a Lubuntu Very Lite ?