xsl:sort and xsl:key

Hi everyone,

This is a horribly vague question, but it would take a *very* long time to
give a proper background and explanation to what it is I'm doing just now:

Are there any issues I should know about when trying to perform something
like <xsl:sort select="key()"/> ?

I've tried it a couple of times with what I'm working on, and the results
have been erratic, to say the least. Does anybody know if any issues, common
pratfalls, etc?

Thanks,

Kerin

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