Situation: A new installation of ACID on your basic 2.4 GHz PC (an IBM Netvista if it matters) with a DMK USB URI fob connected to an Alinco DR135 radio. Everything works great for some number of hours (anywhere from 6 to 18) ... Until it stops working and the following errors crop up in /var/log/asterisk/messages: [Feb 27 17:17:37] ERROR[3464] chan_usbradio.c: HID process has died or something!! [Feb 27 17:46:42] WARNING[3461] app_rpt.c: rpt_thread restarted on node 27680 [Feb 27 17:46:46] ERROR[14747] chan_usbradio.c: HID process has died or something!! [Feb 27 17:52:00] WARNING[3461] app_rpt.c: rpt_thread restarted on node 27680 [Feb 27 17:52:00] WARNING[14770] chan_usbradio.c: Possibly stuck USB read channel. [usb27680] [Feb 27 17:52:04] ERROR[14770] chan_usbradio.c: HID process has died or something!! [Feb 27 17:56:19] WARNING[3461] app_rpt.c: rpt_thread restarted on node 27680 [Feb 27 17:56:23] ERROR[14795] chan_usbradio.c: HID process has died or something!! ... and the radio/asterisk/app_rpt stops responding to DTMF commands. When it gets into this state, rebooting fixes it. I believe most times in this state asterisk is hung, e.g., won't die from a kill or a kill -HUP, so something like "service asterisk restart" hangs. The only other USB device is a keyboard. chan_usbradio appears to be revision 535 app_rpt appears to be version 0.273 This is from an ACID install image downloaded and installed about 1.5 weeks ago. Grateful for any advice ... thanks! Phil, N6TCT