Getting gnome file manager to use acroread instead of xpdf

[Dave Carrigan <dave@rudedog.org>]

I am having a bear of a time getting the file manager to launch acroread
instead of xpdf when I double click on a .pdf file. It insists on
running xpdf. I went to the Control Center->File Types and selected the
application/pdf mime type. The default action is set to "Open with
Application" and I made sure that I had Adobe Acrobat Reader selected
from the popug menu. However, that didn't work; the file manager still
launched xpdf.

I tried editing the list and unchecking all applications except for
acroread. No joy. I tried adding a "My Acroread" application to the
list, with no luck.

In desperation, I did apt-get --purge remove xpdf. Now, the control
center doesn't even list xpdf in the application popup menu. However,
when I double click