I face a similar problem of Ryan's (Show/Hide PDF & Print buttons trigger alerts in Workspace, posted on Sep 17, 2009)
I have created a form using LC Designer, which has only one text Field object. While rendering the same using Designer's Guide Builder, the form gets opened in the browser. In that rendered form, the Show/Hide PDF button, when clicked displays the following error:
request=activateDocumentView errorMessage = TypeError: xfa.form has no properties
parms = null
I have even tried of installing the Livecycle again, but of no use. Also I tried to work upon the solutions which were given to Ryan's problem, but didn't work out. Could anyone help me out?