"lld-link: error: could not open libcmt.lib: no such file or directory"

[moth]

hi all!

after a long while away, i thought i'd download the latest D 
release and give learning it another shot. unfortunately, it 
looks like i screwed up somewhere big time =[

it was working fine for me before [a few months ago i think], but 
now whenever i try to compile i get the message "lld-link: error: 
could not open libcmt.lib: no such file or directory". sometimes, 
depending on what i'm trying to compile, it complains it can't 
find "OLDNAMES.lib" as well.

i thought it was just that i had installed D wrong at first, but 
i've uninstalled / reinstalled a dozen times now and it's still 
not working.

could i really have deleted whatever it's looking for somehow? i 
really want to be able to program in D, but i'm at my wit's end...

please help! =[
- moth