Hi Hans,

Currently I am using the following version under Windows:

ConTeXt  ver: 2003.11.26  fmt: 2003.11.27  int: english  mes: english
and pdfeTeXk, Version 3.141592-1.11a-2.1 

The attached code-sample breaks with an error of "missing number".
Because I am sure, that this kind of table compiled previously I tried
the following

Next to the current installation I run on a linuxbox ConTeXt  ver:
2003.7.3  fmt: 2003.7.7  int: english  mes: english without problem 
and pdfeTeX, Version 3.14159-1.00b-pretest-20020211-2.1

The attached code compiles to expectation.

Is there something changed in the bTABLE-eTABLE environment?

Thanks for looking into it.

Kind regards Willi