How To Change The Temporary Folder

[visp]

Firstly: Sorry for my English...

I am using Ubuntu Linux 5.10 and I have a little problem:
When I run Maya in a terminal, I can read that it tries to access /usr/tmp, but that's impossible, as I am not root. But it's only a warning, it doesn't cause any trouble.
However, when I try to render with MentalRay, Maya crashes, and I have this error:

CODE
RC   0.2  error  081001: failed to create frame buffer 0: /usr/tmp/fb000.0.32309 (Permission denied)
RC   0.2  error  081001: failed to create frame buffer 12: /usr/tmp/fb012.1.32309 (Permission denied)
IMG  0.2  error  101003: : can't create file

maya encountered a fatal error

When I start maya as root, MentalRay works perfectly....
Is there a way to change this temporary folder ?

[subjectego]

Easy way out of this would be, if you have root password for that system, to su as root (in terminal type su, then root password) and then type "chmod -R 777 /usr/tmp". /usr/tmp is a symlink to /var/tmp, which by the way _should_ have permissions set to 777 anyway.

[visp]

QUOTE(ustaunye @ 02/03/06, 04:33 AM) [snapback]227225[/snapback]
Easy way out of this would be, if you have root password for that system, to su as root (in terminal type su, then root password) and then type "chmod -R 777 /usr/tmp". /usr/tmp is a symlink to /var/tmp, which by the way _should_ have permissions set to 777 anyway.

Thanks, it works perfectly now !