Further to this, having later gone into places I rarely venture, the BOOT.INI sequence is as follows (I'll have to type it manually, can't see any way of C&P):
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Home Edition"/fastdetect
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS="Microsoft Windows XP Home Edition"/fastdetect
There doesn't seem to be any option on that page for deleting any of those commands and right clicking does nothing. Any suggestions?
P.S. Further investigations on the General tab of msconfig identify a choice at the bottom to either "use Original BOOT.INI or Use Modified BOOT.INI. The second choice is currently ticked. Could it be as simple as selecting the other choice? I'm not game to do it myself without expert advice.