I have a box that ran perfectly under 4.4. gigabyte motherboard, AM2 4200+ systems. 1 GIG RAM. I installed Centos 5 on the same box. I now see the log entries below and my USB mouse stops working. What to do? Jerry Call Trace: <IRQ> [<ffffffff800b389d>] __report_bad_irq+0x30/0x7d [<ffffffff800b3ad0>] note_interrupt+0x1e6/0x227 [<ffffffff800b3005>] __do_IRQ+0xc7/0x105 [<ffffffff80011c19>] __do_softirq+0x5e/0xd5 [<ffffffff8006a195>] do_IRQ+0xe7/0xf5 [<ffffffff8005b649>] ret_from_intr+0x0/0xa <EOI> handlers: [<ffffffff801d213f>] (usb_hcd_irq+0x0/0x55) Disabling IRQ #209