Hi!!

I am begginer in "context" ( and "tex" too). I want to generate the next table:

A.1	A.2	A.3	A.4
		B.3	B.4
			C.4

I am using xtables and the code is the next:

\starttext
\startxtable[frame=on]
  \startxtablehead
    \startxrow
       \startxcell[ny=3, nx=1] A.1 \stopxcell
       \startxcell[ny=3, nx=1] A.2 \stopxcell
       \startxcell[ny=1, nx=1] A.3 \stopxcell
       \startxcell[ny=1, nx=1] A.4 \stopxcell
    \stopxrow
    \startxrow
       \startxcell[ny=2, nx=1] B.3 \stopxcell
       \startxcell[ny=1, nx=1] B.4 \stopxcell
    \stopxrow
    \startxrow
       \startxcell[ny=1, nx=1] C.4 \stopxcell
    \stopxrow
  \stopxtablehead
\stopxtable
\stoptext

and the result table (with above code) is:

I don't find what is my error....can anybody help me?

thanks in advance!!