[Orgmode] Export error

[Yann Tambouret]

Hi,

I'm getting a weird error, printed below, when trying to export to 
latex. I don't seem to get anything when I try to export to postscript, 
and I assume these are related. It seems to be looking for 
org-cleaned-string-for-export, which I've found in older versions of 
org-mode, but I can't seem to find at all in the current version (I'm 
using the development version, I think). Can anyone suggest a way to 
test where org-mode is being loaded from or a way to track this error? 
I'm guessing I've messed up the install, or reinstall rather.

Thanks,
Yann

org-export-latex-content: Symbol's function definition is void: 
org-cleaned-string-for-export