Squeeze Trinity sudo timeout 15 min.

Ok, first of all we are talking about Debian and not Ubuntu.

Trinity is using a 15min time out, the sudoers file used is the same as what is in normal Debian system, I know I can change the sudoers file and add ",timestamp_timeout=0" to set it to ask for a passwd each time you need to be superuser, but like I said the sudoers file is the same as Squeeze without Trinity.

So the question is what else can be causing this 15min timeout?

What ever it is I want it to die, I want it to behave like a normal Debian system and not like a Ubuntu system.

Thanks,