Mustek MFC-600S + WinXp-Pro - non-stop detecting

Hi,

I recently moved from Win-98-SE to Win-XP-Pro. With instructions from
www.mustek.com.pl and drivers from ftp.mustek.com.pl I finally installed
my Mustek MFC-600S (connected through ISA SCSI card) and it works great
but there's one problem:
System is detecting new device all the time! It is 'Mustek 1200P' and
after passing the installation steps the system still is detecting new
device. Now, if I install the new device for the second time I have two
scanners in device manager. How many times I install the new device (it is
still the same scanner) that many times it displays in device manager, so
I temporarily installed just one scanner, it works fine, but have to keep
the 'Adding new device creator' window always on my desktop. If I keep
installing or close the window it will reappear in 5 seconds. What can I
do?

Regards
--
Maciej Zalewski
Poland