[expert] automatically logout ?

[fasi_74]

 it didnt do it before but for about a month now i have been noticing that
my computer automatically logs me out after i leave it inactive for a period
of time. I have spent countless hrs looking for where there my be a session
timeout value or something of the sort to no avail, i am currently using
mandrake 7.0 using gnome/kde a resolution to this problem would be greatly
appreciated