Using Pers. Dictionary with Aspell in R

My goal is to use Aspell 0.60 with a personal dictionary within R.  Running
WinXP, R 2.15.1, and Cygwin's install of Aspell 0.60.  Using a test file
with 2/5 words misspelled:
SpellTest.txt
test
text
txxt
endeavour
mytzlplk

and dictionary files (aspell.en.pws, and spell.en.prepl respectively) of: 
personal_ws-1.1 en 0
mytzlplk

personal_repl-1.1 en 0
mytzlplk superman

and R expression of:
SpellOut<- aspell(SpellTest,
                  program=SpellProg,
                  control=c("--master='en_US.multi'
--add-extra-dicts='en_GB.multi' ' -p ./aspell.en.pws'"))

makes no suggestion for "mytzlplk" but finds "txxt" and allows "endeavour."  
As seen in:
> print(SpellOut$Suggestions)
[[1]]
 [1] "text"  "TWX"   "TeX"   "Tex"   "tax"   "tux"   "taxi"  "xxxi" 
 [9] "xxxv"  "tax's" "tux's"
> summary(SpellOut)