In Word XP I was able to type a lowercase a with a macron over it by holding
down the ALT key and then typing 257 on the number pad. However, I have
discovered that when I try to do this in Word 2003, nothing appears. In both
case, Times New Roman was my font.

So my question is the following: Since the ALT + # combination no longer
seems to work in Word 2003, how do I type English vowels with a macron over
them -- needed in Latin and the transliteration of Sanskrit and Hindi.