chekc ur IEEE drivers. you should have mentioned this thing of taking it at apple store in first place.
have u installed drivers prior to plug-in the iPOD? or vice verca?
Intel Core2Quad 2.66Ghz 12MB L2-Cache
4096MB DDR Kingston Hyper-X
XFX 9600GT AlphaDog
Seagate 2 X 320GB SATA2
LG L246WH Flatron 24"