help: gmprintsuite: error, selected printer not valid..

Testing out GMPrintsuite 2.51.. When adding a GMPreview component on
my form, I get a 'selected printer not valid' error and cant continue.

I then removed the package, un-installed, then re-installed.. This
works great for at least 1 compile, then the error reappears.

ANyone have experience with this print suite ?

jack forehand