That´s weird. Mine is exactly this version, my windows is a 64 bits (windows 7) and I still don´t get it. It seems obvious - even stupid - to me that I should have this option. Maybe I have to reinstall it. 

Thank you so much.

Claudio

2010/5/25 Sven Schreiber <svetosch@gmx.net>
Am 25.05.2010 17:02, schrieb Claudio Shikida (敷田治誠　クラウジオ):
> Yes, but just as independent variables. I cannot include them as
> instruments. That´s my question. Thanks for answering me, but the
> problem persists for me. If you can use lags as instruments, so my
> version has some bug.
>

which immediately begs the question which version you are using (and on
which platform) because with currrent 1.9.0 I'm perfectly able to choose
lags as instruments!

-sven





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