[LyX 1.4.2/Win XP] Aspell using wrong personal dictionary

[Paul A. Rubin]

In LyX 1.4.2, adding words during a spell check puts them in a new 
personal dictionary in the document source folder.  With previous 
versions, the new words were added to a global personal dictionary in 
the Aspell installation folder.  I much prefer the latter behavior, 
since it does not require me to add the same word over and over.  Is 
there any way to restore this behavior with LyX 1.4.2?

TIA,
Paul