Directly Listing present on every admin screen

Hi All,

I am in the process of moving a 1.5.3 install from one server to another ready to upgrade to 1.5.5e, but and have come across an interesting problem

On the new server every admin page has a line across the top that looks like a directory listing entry.

drwxr-xr-x 2 wholesale psacln 4096 Apr 19 12:20 . drwxr-xr-x 6 wholesale psacln 12288 Apr 19 12:42 .. -rw-r--r-- 1 wholesale psacln 182 Apr 19 12:01 common.php -rw-r--r-- 1 wholesale psacln 79 Apr 19 12:20 description2.php -rw-r--r-- 1 wholesale psacln 54 Apr 19 12:20 sku.php

It only appears on the admin pages. Anyone have any ideas? It doesn't appear on the old active server (php 5.3.10) but does appear on multiple versions of php from 5.3 to 7+). Nothing obvious in the errors?

Any ideas? please :-)

Wayne