[RedTurtle]

Thank you again for the quick reply.

Steps I've taken:

-Disabled plugins via config.php
-Disabled vBOptimise via AdminCP products page
-Cleared System Cache

The white screen is gone now, however if I turn vBOptimise back on, the problem persists again. On my current production box I am using Memcached and have tried to switch to XCache on this new test site. To this end I tried to clear the cache before I made my backup database which I imported onto the test server. I then changed the config.php from Memcached settings to XCache.

But for some reason I'm still not able to have xcache fetch the cache from the server.

Oh also, I went ahead and set a user/pass in the vbOptimise config file for accessing XCache since I noticed my XCache had authentication turned on.

Thank you again.