LyX ⇒ Problem with references

[aliquerer]

I am sort of a newbie when it comes to LaTeX and LyX. However I have a little problem which I would like to have some help with.

I have written all my references in JabRef and they all work well, as long as i use English letters. However, when I use Swedish letters, which i need for some references, LyX fails to deliver the reference list. Instead, all reference numbers are replaced with a "?".

How can I solve this?

[aradan]

Have you tried change language settings on Tools->Settings ?
There's a section that says \usepackage{babel}
Maybe you could use \usepackage[spanish]{babel} (use your corresponding language)
or \selectlanguage{$$lang}

Sorry for my bad english