Please describe the problem:
When adding a notebook, the "Create a GtkNotebook" dialog appears.  The spin button for the number of pages initially has a value of 3.  The value can be increased using either the mouse wheel or entering a number, but the value can't be decreased using the mouse wheel.  Although a lower number can be typed, it reverts to the previous, larger value when focus leaves the spin button.  Also, once the value has been increased, that new value becomes the minimum.  No lower value will be accepted.

Steps to reproduce:
1. Add a notebook to a window.
2. Try to decrease the number of pages value.  See that it won't be accepted.
3. Increase the value.
4. Try to decrease it again.  See that the value set in step 3 is the new minimum.


Actual results:
as described above

Expected results:
the number of pages should be adjustable

Does this happen every time?
seems to for me

Other information:
version 3.4.5 on up-to-date Ubuntu 8.04