[CentOS] External USB Hard Drive mount problems

Hi Folks
I have a number of external USB enclosures with hard drives in. Some are IDE 
and others are SATA drives. I'm running CentOS 5 + all updates. Recently when 
I plug in an external drive I get the message "Invalid filesystem type. I 
have install the NTFS-3G bits stuff and reformatted the hard drives with 
FAT32 but still get the same error message. This started after an update (not 
shore which one,) as I had been able to copy files to / from these disks 
before. I have turned off selinux and had a look at my fstab file, but can't 
see any thing obvious. Can some one point me in the right direction to debug 
this please?
Regards John
-- 
Guy Fawkes, the only man to enter the houses of Parliament
with honest intentions, (he was going to blow them up!)
Registered Linux user number 414240