One of my older machines has a UMax 1200 SCSI scanner on it.  Three
years ago, I upgraded it from RedHat 9 to Fedora Core 1.  Two weeks
ago, I upgraded it from FC1 to SL5.   When I tried to use the scanner
yesterday, the machine froze hard;  it wouldn't even respond to the
reset button, I had to pull the plug.

After frobbing around a bit, the cure was to delete the .xsane
directory (probably originally for RH9) in my home directory, and
let the current version of xsane build a new one.

It irks me that a user-space program can lock up the machine (that
is so, so M$ ), but at least there is a cure.   

Keith

-- 
Keith Lofstrom          [log in to unmask]         Voice (503)-520-1993
KLIC --- Keith Lofstrom Integrated Circuits --- "Your Ideas in Silicon"
Design Contracting in Bipolar and CMOS - Analog, Digital, and Scan ICs