i dont understand the following messages of the log: Apr 21 17:13:30 www last message repeated 2 times Apr 21 17:13:31 www kernel: Apr 21 17:13:31 www kernel: Reading... Apr 21 17:13:31 www kernel: retval:0 Reading Successful...<3>usb-uhci.c: Host controller halted, trying to restart. Apr 21 17:13:31 www kernel: usb-uhci.c: Host controller halted, trying to restart. Apr 21 17:13:33 www last message repeated 10 times Apr 21 17:13:34 www kernel: usb-uhci.c: interrupt, status 20, frame# 1336 Apr 21 17:13:34 www kernel: usb-uhci.c: Host controller halted, trying to restart. why host controller get halted.... This may be due to some wrong CONTROL MESSAGES regards, - /usr/src/navtez Senior Undergraduate Student Dept of Computer Sc. & Engg. BBSBEC Fatehgarh Sahib. -------------------------------------- Ambition: To be on the cover of the TIME magazine ----------------------------------------- Baba Banda Singh Bahadur Engineering College Fatehgarh Sahib, Punjab, India http://www.bbsbec.ac.in http://www.bbsbec.org -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/