I've got a client that has a GeoTrust "QuickSSL" certificate (we normally deal with Thawte).  I installed the cert/key, but it is not functioning (pulling up default certificate), so I figured I would need the CA.  I gathered the CA, so in the file I have:

       Certificate Private Key
       Certificate
       GeoTrust CA

Where is the default location to install other CA's and/or chained certs? Thanks!