I've just gone from 2 gig of memory to 3 gig in my x86_64 FC5 system with an asus A8N-E, and suddenly I get all kinds of errors about USB problems when the system boots and the USB scanner is no longer recognized. Is there some known problem with > 2 gig of memory and the onboard usb with the x86_64 kernels? I also have an i386 boot partition on the same machine, and if I boot the i386 kernel, it has no problems with USB and the scanner works fine, so it doesn't appear to be a hardware issue.
