Installing Megacores on Linux

Hi everybody...

I have a problem that i posted in http://www.alteraforum.com/forum/showthread.php?t=214&page=4&highlight=linux.

Basically, i get a Seg fault in Quartus when trying to access to Tools->Options or Tools->License Setup. You can see the error code in the attachment I include, just in case you want to have a look and maybe give some idea about what to do.

But the reason to post here, since I cannot access to Tools->Options, is if there's any file I can edit manually so that I can add the megacores in the global user libraries in Quartus II.

Thanks so much...