I have the same problem on my old pc, everytime i went to shut down or restart the pc, actually most times, not everytime, i would get the message that ccApp.exe was not responding, so i either ended it manually or it just ends up shutting off on its own, not a big deal, but i knwo what u mean.
AMD Athlon 64 3500+ [939 Socket] W/ ASUS \"A8N-SLI Deluxe\" nForce4 SLI Chipset PCIe Motherboard
Kingston 1024 MB [512MB X2] DDR-400 PC3200 Memory
MSI Nvidia GeForce 6600GT 128MB DDR3 128-bit PCIe
Western Digital 160 GB 7200 RPM 8MB Cache SATA Hard Drive + WD 120GB 7200 RPM IDE HDD
LG Dual Format/Double Layer 16X DVD±R/±RW + CD-R/RW Drive