limit to resolution of CELL?

Is there a limit to the resolution of CELL? I can't
get it to produce a raster with more than 479 rows
and 639 cols. Whats the secret?

cheers Tom

Tom Charnock O--O
Dept Civil Engineering (~~~~)
Aston University ( __ )
Birmingham B4 7ET UK /|\ /|\
charnotw@sun.aston.ac.uk