I had on my PC a trusted form i designed and used regform to aquire the
trust. I modified the form and now it doesn't open as it is no longer a
trusted form. I have tried the regform to "re trust" it but it keeps telling
me that i have used the "/T Yes" more than once, i have changed the name of
the form and saved it several times but still get that message or that the
form address does not exist or is not a valid .xsn........

I can no longer use the from to access my companies database, have i got to
build a totally new form or can i make this form work again.

Its crazy that you infopath does not allow you to make modifications to a
trusted form on the host system without crashing.

Just another point, where in the infopath help files does it tell you haw to
make a form trusted?