~/.prx??? files <------- whence?

[billh autobahn org]

  Hello.

  Would someone please be kind enough to tell me what program keeps
putting little 2-byte files with names like

			.prxa02253

in my home directory -- and how I make it stop doing that?


  Thank you and greetings!
--
<billh_AT_autobahn_DOT_org>

                Maximize end-user autonomy.