Previously I was using the mu version of WP for my sites. This all worked fine and peachy. I redid my site and basically created a new install of the latest version of WP. I went to the Network guide page and followed the steps and started running into problems.
The first problem was that I couldn't get permalinks to work. When I went into the admin section and clicked on the permalinks page it was blank with the exception of the menu bar. (Which is weird because permalinks with e.g. Drupal just work fine). After some searching I found a solution and got it working namely: http://wordpress.org/support/topic/permalink-settings-page-is-blank-wp-292?replies=15
The second problem seemed to be similar. After editing the wp-config.php file as directed the option of Network appears in the menu bar. But when I click on it I get a blank page. Trying all kind of things, even contacting my host I got the message back that it was most likely related to Cpanel and VHOST's and I was given the advice to revert back to the latest version of MU.
Now my host gives me a lot of space and room to work in, I have 512MB of RAM to my disposal and they even turned mod_sec of for me to see if that was the issue. The question now is, if there is a way for me to fix this?
I am willing to try everything (except running naked through the park) and would appreciate some guidance.