People with low resolutions screens tends to use smaller stuff in their UI to save space. Here is a tips on how to reduce the size of your GTK toolbar icons etc. Its quite hard to google for, so I dump it here. I found this tip @ http://gnomesupport.org/forums/viewtopic.php?t=10961
Step 1.
Create a file named .gtkrc-2.0 at your home folder if it haven't yet exist
Step 2.
Add this line into the file
Step 3.
Logout and relogin (or you can juz kill all your gtk apps and restart it)
Step 1.
Create a file named .gtkrc-2.0 at your home folder if it haven't yet exist
Step 2.
Add this line into the file
gtk-icon-sizes = "panel-menu=16,16:panel=16,16:gtk-menu=16,16\
:gtk-large-toolbar=16,16:gtk-small-toolbar=16,16:gtk-button=16,16"
Step 3.
Logout and relogin (or you can juz kill all your gtk apps and restart it)