Sorry again. I copied and pasted the codes in mp-cb-en.pdf and run it. It worked fine. Hence I modified the codes using my data and it also worked fine. I compared the structures of the codes in the documents and mine. The only difference is the blank lines between ............ \stoptable}{talbe 1} \starttable[...... and it was the cause of the trouble. The other day, I had a trouble in using \head because I didn't insert blank line, but today, I made another problem because inserting a blank line. Anyway, it is good to know ConTeXt better. Thanks for reading. Dalyoung