Greetings Mauricio!
It was (still is) a bug, but see thread "
Global Helical Axis Information Missing". It's well worths repeating that for a word-around (for the time being), please do the following:
<std_curved >0.6</std_curved > # add a space in the end of the tag!
Just to clarify, [red:298epu6t][mono:298epu6t]3DNA v2.0 [August 2007][/mono:298epu6t][/red:298epu6t] was a pre-release for testing of v2.0 (beta) before the 2008 3DNA
Nature Protocols paper was published; [red:298epu6t][mono:298epu6t]3DNA v2.0 [June 8, 2008][/mono:298epu6t][/red:298epu6t] is the currently distributed version. 3DNA [red:298epu6t]
v2.1[/red:298epu6t] is not out yet, but I am planning to release it in the near future -- by early next year!
Thanks for reporting the bug! As always, the more bug reports, the merrier!
Xiang-Jun