content block tab and textarea height

[nervino]

Hi, I put a content_block in the page template to have an extra field for help text:
{content block=aiuto label="Testo di Aiuto" assign=aiutotxt tab=Aiuto}
It works great except for the textarea in the TAB which is 100px height.
With Firebug I've found that:
table #mt_aiuto_tbl, iframe #mt_aiuto_ifr {height:100%;}

while in the standard edit area of the page these two elements are 370px height.

Is there a way to fix this?

I'm using cmsms 1.11.2.1 and OneEleven template.

(by the way, any news about 1.11.3 diff files?)

thank you