My first question was answered on how to get the boot menu to appear using Ubuntu 12.04.01. It now does. The second part of the problem is that when Windows XP is selected the screen blanks with a cursor flashing briefly, a message flashed up too fast to read, and returns to the menu. After performing this 20 or so times I have figured out what the message is. It reads "ERROR: no video mode activated". I have tried to enter text in the grub.cfg file as per another post but it did not help. I looked at the menu contents while there and the information there is similar to the grub.cfg file but definately not the same. The menu contents are as follows:
insmod part-msdos
insmod ntfs
set root='{hd0,msdos1}'
search --no floppy --fs -uuid --set=root 01CDA33B881AAD20
--drivemap -s(hd0${root}
chainloader +1
I read a post about getting something called boot-repair but I am unable to find this and the terminal window says there is no such package. I assume it means that it is not installed. I have installed Ubuntu 12.04.01 if that helps.