Exposed filter button in view links to homepage when in displayed with viewfield

Hi there,

I'm running into trouble on my site where an exposed filter button, "apply," I have in a view works fine when I publish it as a page, however upon inserting the view into a node via viewfield, the apply button no longer works as expected, and instead sends the user back to the homepage.

example: http://www.porterworkstest.seanporterdp.com/index.php?q=education-soluti...

I would be very grateful for any information on how to solve this! otherwise I'm using the module extensively and love it!

many thanks in advance,
Sean