Originally Posted by zuz242

i guess you are referring to usb ports?
one thing i realized at some point was that usb was only recognized at bootup but not if i insert a usb drive at a running system.

one way to fix usb problems is using a system.kext matching your kernel. with a (voodoo) 10.5.5 kernel you need a 10.5.5 system.kext. reinstalling the kernel package (anv 10.5.6 for example) often installs the matching system.kext as well.

if you are on a vanilla install (boot-123?) you should check the other threads about 10.5.7, as i remember reading something about a new usb kext ...