t2x definitely works (has worked for many years) correctly, provided the unix/linux commands called by it work as they should!
Sorry Nils, but the problems you write about are NOT the fault of the t2x command. Is it possible that you selected the wrong xyz format in
the gopenmol program? In previous versions of gopenmol one had to select between different xyz/xmol formats, the
t2x script writes an xyz file with two header lines (first line: number of atoms, second line: energy) as they are recognized
by many viewers (e.g. jmol, molekel). Gopenmol knows this format as 'xmol', while the 'xyz' format is in gopenmol defined
with only one header line.
This problems does not occur with gopenmol 3.00, which determines the file format automatically.
Best regards,
Christof