i installed FC3 recently, the kernel came with was 2.6.9 something.
everything seemed to work well. but i installed kernel-2.6.10-x later on.
then i removed 2.6.9, and i found i could not listen to music.
the sound card seems to be working but no sound came out at all.
and flash drive and cd rom cannot be identified automatically any more.
do not know what is happening now, how to fix these problems?
do i have to recompile the kernel myself?

thanks for your help!

The Sound card issue.
Perhaps alsa has the volume set to 0. Adjust it and do a alsactl store. That has happened to me.

The flash drive / cd rom issue
plug in the drive and post the dmesg so we can see whats going on when you plug it in.

I had the drive plugged in and here is what I got using dmesg:

usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
md: md driver 0.90.1 MAX_MD_DEVS=256, MD_SB_DISKS=27
ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 10
PCI: setting IRQ 10 as level-triggered
ACPI: PCI interrupt 0000:00:1d.7[D] -> GSI 10 (level, low) -> IRQ 10
ehci_hcd 0000:00:1d.7: EHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.7 to 64
ehci_hcd 0000:00:1d.7: irq 10, pci mem 0xfebffc00
ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
PCI: cache line size of 128 is not supported by device 0000:00:1d.7
ehci_hcd 0000:00:1d.7: USB 2.0 initialized, EHCI 1.00, driver 26 Oct 2004
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
USB Universal Host Controller Interface driver v2.2
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 11
ACPI: PCI interrupt 0000:00:1d.0[A] -> GSI 11 (level, low) -> IRQ 11
uhci_hcd 0000:00:1d.0: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.0 to 64
uhci_hcd 0000:00:1d.0: irq 11, io base 0xe800
uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
ACPI: PCI Interrupt Link [LNKD] enabled at IRQ 5
PCI: setting IRQ 5 as level-triggered
ACPI: PCI interrupt 0000:00:1d.1[B] -> GSI 5 (level, low) -> IRQ 5
uhci_hcd 0000:00:1d.1: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.1 to 64
uhci_hcd 0000:00:1d.1: irq 5, io base 0xe880
uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 3
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
ACPI: PCI interrupt 0000:00:1d.2[C] -> GSI 9 (level, low) -> IRQ 9
uhci_hcd 0000:00:1d.2: UHCI Host Controller
PCI: Setting latency timer of device 0000:00:1d.2 to 64
uhci_hcd 0000:00:1d.2: irq 9, io base 0xec00
uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 4
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
usb 3-2: new full speed USB device using uhci_hcd and address 2
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
Initializing USB Mass Storage driver...
scsi0 : SCSI emulation for USB Mass Storage devices
usbcore: registered new driver usb-storage
USB Mass Storage support registered.
usb-storage: device found at 2
usb-storage: waiting for device to settle before scanning
NET: Registered protocol family 10
Disabled Privacy Extensions on device c03697c0(lo)
IPv6 over IPv4 tunneling driver
divert: not allocating divert_blk for non-ethernet device sit0
Vendor: STF Model: Flash Drive Rev: 1.89
Type: Direct-Access ANSI SCSI revision: 02
usb-storage: device scan complete
SCSI device sda: 64000 512-byte hdwr sectors (33 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
sda: assuming drive cache: write through
SCSI device sda: 64000 512-byte hdwr sectors (33 MB)
sda: Write Protect is off
sda: Mode Sense: 03 00 00 00
sda: assuming drive cache: write through
sda: sda1
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0