I compiled xfce on linux 64 bit system and everything compile fine. I was able to fire up startxfce4 without any problems. When I'm running xfce 4.4.2 and I set the focus to "focus follows mouse" it works but then will stop working until I click on another window or move to another window. Then it'll stop working again for now apparent reason. I'm willing to send any information you need to help debug this problem! I did have to recompile my own glib, gtk+ and other libraries since I'm on a rh 4 update 5 system and the default libs are outdated.

Here's a list of "extra" libs I compiled before compiling xfce-4.4.2:

drwxr-xr-x  15 mc7 mc7     8192 Jul 15 15:59 gtk+-2.12.11
drwxr-xr-x   7 mc7 mc7     8192 Jul 15 15:41 dbus-1.2.1
drwxr-xr-x   8 mc7 mc7     8192 Jul 15 15:40 dbus-glib-0.76
drwxr-xr-x  10 mc7 mc7     8192 Jul 15 14:26 libical-0.30
drwxr-xr-x   6 mc7 mc7     8192 Jul 15 14:11 libnotify-0.4.4
drwxr-xr-x   3 mc7 mc7     1024 Jul 15 14:01 xfce-4.4.2
drwxr-xr-x   8 mc7 mc7     8192 Jul 15 13:58 vte-0.16.14
drwxr-xr-x  10 mc7 mc7     8192 Jul 15 13:55 pygtk-2.12.1
drwxr-xr-x  10 mc7 mc7     8192 Jul 15 13:54 libglade-2.6.2
drwxr-xr-x   6 mc7 mc7     8192 Jul 15 13:53 pycairo-1.4.12
drwxr-xr-x   7 mc7 mc7     8192 Jul 15 13:52 pygobject-2.14.2
drwxr-xr-x   9 mc7 mc7     8192 Jul 15 13:50 libexif-0.6.16
drwxr-xr-x   8 mc7 mc7     8192 Jul 15 13:48 GConf-2.22.0
drwxr-xr-x   7 mc7 mc7     8192 Jul 15 13:43 ORBit2-2.14.13
drwxr-xr-x   5 mc7 mc7     8192 Jul 15 13:40 libIDL-0.8.10
drwxr-xr-x   4 mc7 mc7     8192 Jul 15 13:37 intltool-0.37.1
drwxr-xr-x   7 mc7 mc7     8192 Jul 15 13:32 pcre-7.7
drwxr-xr-x  15 mc7 mc7    16384 Jul 15 13:14 libxml2-2.6.30
drwxr-xr-x  19 mc7 mc7     8192 Jul 15 13:11 Python-2.5.2
drwxr-xr-x   9 mc7 mc7     8192 Jul 15 12:54 pango-1.20.5
drwxr-xr-x   5 mc7 mc7     8192 Jul 15 12:54 startup-notification-0.9
drwxr-xr-x   8 mc7 mc7     8192 Jul 15 12:51 cairo-1.6.4
drwxr-xr-x  13 mc7 mc7     8192 Jul 15 12:45 poppler-0.8.4
drwxr-xr-x  11 mc7 mc7     8192 Jul 15 12:11 zlib-1.2.3
drwxr-xr-x   8 mc7 mc7     8192 Jul 15 11:58 gtk-doc-1.9
drwxr-xr-x   6 mc7 mc7     8192 Jul 15 11:47 atk-1.22.0
drwxr-xr-x   4 mc7 mc7     8192 Jul 15 11:46 pixman-0.11.6
drwxr-xr-x  15 mc7 mc7     8192 Jul 15 11:44 fontconfig-2.6.0
drwxr-xr-x   8 mc7 mc7     1024 Jul 15 11:42 freetype-2.3.7
drwxr-xr-x   7 mc7 mc7     8192 Jul 15 11:40 libpng-1.2.29
drwxr-xr-x  12 mc7 mc7     8192 Jul 15 11:36 glib-2.16.4
drwxr-xr-x   6 mc7 mc7     8192 Jul 15 11:32 pkg-config-0.19

Please let me know any more information you may need.

thanks,
Mike