The following is not a real solution, but it I think it would make the user understand the necessary internals better: Add a second dialog to the "User Installation" process that explains the user Gimp's way of handling memory and allows him to choose the size of the tile-cache-size and the location of the swap-file. At this point the dialog should try to propose some reasonably alternatives: Choices for the directory should be '~/.gimp/tmp' or the the result of g_get_tmpdir(). And of course, the dialog should not give any default values and will not go away until the user makes a decision. To allow system-administrators to make this choices for their users, we skip the dialog if the global gimprc already contains entries for these settings. What do you think?? Salut, Sven