unfortunately those didn't help. The issue isn't on initial load for some reason. It only happens the second the user browses to a secondary page inside of the catalog. You can punchout to the catalog without hitch, but the minute some movement occurs (next button, check out, etc) it white screens/blanks.
We've also noticed some inconsistencies revolving around SSL if that sparks any thoughts for anyone...
Thanks for the help -
J