I tried having just the one boardindex but that brought up an error..
I tried on that latest one that was an error that said something about a the last line
(it suggested trying the default theme - so I did)
which produced this error:
Fatal error: Call to undefined function noConflict() in /public_html/forum/Sources/Load.php(2463) : eval()'d code on line 205
if this helps narrow anything down?
I've also got margarett offering to help out with my monster of an error log but I'll see what we dig up and report back!