Externnotify in Voicemail.conf won't execute any scripts

Asterisk 1.4.25 - running under root.
CentOS

[voicemail.conf]
externnotify=/usr/bin/myscript.sh

[myscript.sh]
#!/bin/sh
echo “TEST” > testfile

The script simply won’t execute…It doesn’t even “try”.

I’ve found several other people on the same version of Asterisk with the same issue…

Anyone have a clue ?
Is this broken in 1.4.25 ?

What is Asterisk running as ? Anything in the log files ? Can it be a permissions issue ?

I was actually able to get this working by putting my test script in /root/

I have no idea why that makes a difference.

CentOS 4.x