hi all!

i have a sub defined in a module:
public sub myFunc(a as string, b as string, optional c as integer, optional
d as label)
.....
end sub

calling this from a userform:

call myFunc(a,b,c,d)

where
a and b are TextBox (defined in the UserForm)
c is an integer defined private c as integer
d is a Label (defined in the userform)

all variables have a value

i am getting a type mismatch error on this call
call myFunc(a,b,c,d)
..... why?
(i have also tried a.value, a.text, cstr(a) and that hasn't worked. i've
also tried cint(c)