[O] org-cdlatex subscripts

[Giacomo M]

Dear all,
I'm experimenting with org-cdlatex subscripting facilities. As far as I understood from the manual, if I type:
$t_disp<TAB>
I should get
$t_{disp}
with the cursor placed after the last brace.
Instead I get:
$t_{d}isp
with the cursor after the next word.

Any ideas on how to make this work as expected?

Thanks,

Giacomo