How utterly crazy. One possibility is a watchguard reboot (maybe by the BIOS) if the IR transceiver is drawing more current on the USB than is allowed.
Do you see any message just before the reboot if you try to boot with '(recovery mode)' ? -- system continuously boots/reboots when usb wireless keyboard is plugged in https://launchpad.net/bugs/42297 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
