Comment 69 for bug 160311

I concur with Jared.

Also running Jaunty and I've tried various themes for Gnome including "Human", "New Wave", "Dust", etc.

All of these themes have different border sizes, and for aesthetics, many themes have a very thin border (1 pix). When the border is so thin, it's extremely difficult to "naturally" move your mouse cursor over that 1 pixel thickness.

As per some discussion in the "New Wave" Gnome theme (https://bugs.launchpad.net/bugs/371833), you can customize the border width as follows:
I've edited my metacity-theme-1.xml (found in /usr/share/themes/New Wave/metacity-1) as follows:
<distance name="left_width" value="5"/>
<distance name="right_width" value="5"/>

Again though, forcing users to have a thicker border to make resizing windows natural isn't the correct solution. Having an "invisible" thicker resize area would work, or perhaps a "snap to" border edge when you're within 5 or 10 pixels of the border.