Installing Accelrys Materials Studio‏ Server in cluster

Dear everyone...


I tried to install the Materials Studio Server for Linux in my cluster Rocks, but in successful end installation, the cluster stops working and the frontend loss the communication with the nodes that appear as down.
From my perspective, the problem is that the Rocks mounts automatically the web server during installation and uses the httpd protocol for communication between the server and the nodes, but Materials Studio to mounts automatically a web server and also uses the httpd protocol to communicate with client, through the gateway and it overwrite the files of web server in the rocks which lost the configuration for the control of nodes by the master server

Give me some idea of how to solve this problem.