harmless script renders network inaccessible
 

I made a script logged in as root to run a program on the company network automatically. What it does is:

#!/bin/sh
bash
DISPLAY=meseta:0
csh
pmx_ven

I changed the permisions for the file, put it in /bin instead of /home/(user)/bin
and executed it. The program it was supposed to load didn't start. I tried loading the program manually but it still didn't start. I figured it wasn't accessible from root. So I reset and logged in as my user. When the machine was reset, the network had stopped working. The ethernet card was recognized, but the network wasn't.

The company's admin still hasn't figured out the solution yet, so I'm posting on this thread.

I'm using Red Hat Linux 3.11

Any help would be greatly appreciated.

Oh and by the way, I named the script "promax"

I checked the output from ifconfig -a and this is what it says:

lo Link encap:Local Loopback
LOOPBACK MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)