[XeTeX] Strange error

[BPJ]

2013-06-09 15:01, Arthur Reutenauer skrev:
>> It is strange because I am unable to find a package named etoolbox in ctan.
>
>    Wilfred has already given the link to the package on CTAN, and as he
> said it is part of TeX Live; in the collection latexextra, to be
> precise.  What's strange is how you managed to install polyglossia
> without installing etoolbox, as the former lists the latter as an
> explicit dependency.

Could it happen if you uninstall etoolbox after installing 
polyglossia? Just wondering...

/bpj