The hard disk on an old system with an ISA card just died and I reloaded a more modern OS (Fedora Core 1) and asterisk, but I wonder what I need to do to get ISA support working. # /etc/init.d/zaptel start Loading zaptel framework: [ OK ] Loading zaptel hardware modules: wcusb Running ztcfg: ZT_SPANCONFIG failed on span 1: No such device or address (6) [FAILED] # grep torisa /etc/mod*conf /etc/modprobe.conf:options torisa base=0xd0000 <--same as before /etc/modprobe.conf:alias char-major-196 torisa /etc/modprobe.conf:post-install torisa /sbin/ztcfg If I try a manual modprobe: # modprobe torisa /lib/modules/2.4.22-1.2115.nptl/misc/torisa.o: init_module: Input/output error Hint: insmod errors can be caused by incorrect module parameters, including invalid IO or IRQ parameters. You may find more information in syslog or the output from dmesg /lib/modules/2.4.22-1.2115.nptl/misc/torisa.o: insmod /lib/modules/2.4.22-1.2115.nptl/misc/torisa.o failed /lib/modules/2.4.22-1.2115.nptl/misc/torisa.o: insmod torisa failed Any ideas? Thanks...