SCSI scanner doesn't reliably show up in OS X

[BEIGE]

i'm finding that in OS X (both Jaguar and the Panther beta) that i can't reliably get silverfast to see my scanner, despite it clearly being visible to the system in the apple system profiler. i also tried to move my Zip disk and broken SCSI burner out of the chain and then couldn't get Silverfast to work no matter what i did (with the scanner directly connected!). is this common? is there a workaround? i have the proper adaptec driver installed

also, Silverfast takes an incredible amount of time to load in Panther. i don't know whether it's an issue with Photoshop's memory management, Silverfast or Panther but nevertheless, it's painful. it takes a good 30 seconds to get past the launch screen.

my system:
-dual G4 500/1280 MB RAM/PS 7.0.1/OS X 10.2.6 and OS X 10.3 7b59
-scanner: powerlook 2100xl on an adaptec 2906 pci card

[LSI_Sperling_old]

Dear BEIGE -
You are right - there are problems with SCSI on Mac OS X
Not every SCSI adapter will work on OSX proper. IF the scanner is found by the system ( look at Apple System Profiler ) SilverFast will work without problems.

1. install the OSX driver for your scsi adapter and shot down your Mac

2. check the scsi ID of the PL 2100 XL and switch to " 2 " - start the scanner and wait, until it is ready

3. boot the Mac and check at the Apple System profiler, if the scanner is found by the system - if " yes " SilverFast will work - if not: shot down your Mac, switch the scsi ID of the scanner to " 4 " - start the scanner and..... so on.
The problem is the connection between your scanner and your scsi adapter. Please always first start your scanner - wait and then start your Mac.

Hopefully everything is fine now

regards

Christoph