Steps to reproduce:
1. Open a PDF File
2. Scroll Down using Page Down keyboard



Stack trace:
Distribution: Debian lenny/sid
Gnome Release: 2.22.2 2008-05-29 (Debian)
BugBuddy Version: 2.22.0

System: Linux 2.6.22-3-686 #1 SMP Sun Feb 10 20:20:49 UTC 2008 i686
X Vendor: The X.Org Foundation
X Vendor Release: 10400090
Selinux: No
Accessibility: Disabled
GTK+ Theme: Clearlooks
Icon Theme: gnome

Memory status: size: 71823360 vsize: 71823360 resident: 50626560 share: 15699968 rss: 50626560 rss_rlim: 4294967295
CPU usage: start_time: 1215008116 rtime: 1364 utime: 1116 stime: 248 cutime:0 cstime: 0 timeout: 0 it_real_value: 0 frequency: 100

Backtrace was generated from '/usr/bin/evince'

Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 0xb6bdd720 (LWP 21361)]
[New Thread 0xb69f0b90 (LWP 21362)]
0xffffe410 in __kernel_vsyscall ()

+ Trace 201914

----------- .xsession-errors ---------------------
** Message: GetValue variable 11 (b)
** Message: GetValue variable 268435466 (1000000a)
** Message: GetScriptable [0x9966508]
** Message: totemGMPPlugin ctor [0x98f4f68]
TotemEmbedded-Message: AFTER _open (ret: 1)
TotemEmbedded-Message: Viewer state: PLAYING
** Message: OpenStream reply
** Message: URLNotify URL 'http://www.cs.stanford.edu/cslibrary/PointerFunPreview.avi' reason 1
TotemEmbedded-Message: totem_embedded_set_error_logo called by browser plugin
TotemEmbedded-Message: Viewer state: STOPPED
** Message: totemGMPPlugin dtor [0x98f4f68]
** Message: totemPlugin dtor [0x9966508]
** Message: NP_Shutdown
Cannot access memory at address 0xc
Cannot access memory at address 0xc
--------------------------------------------------


Other information:
Please, if this bug is duplicated, please delete it!