audio problems in 10.10

[Jamie Paul Griffin]

just installed 10.10, allowed the system updates and now i've got no sound. in fact, i'm not even sure there was sound prior to the update. 

lspci -v | less shows:

00:1b.0 Audio device: Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02)
        Subsystem: Lenovo Device 3048
        Flags: bus master, fast devsel, latency 0, IRQ 45
        Memory at fc520000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: HDA Intel
        Kernel modules: snd-hda-intel

i'm wondering if there's a simple way to get it working, can anyone help me with this?       

	jamie