I just upgrade my PC to 2.8 Dual Core and 865 Asus Motherboard. but my computer was really slow in boot process and other memory activity my HDD was build on 2001 it is Seagate, So there is any problem in HDD ??. My HDD was 40GB and 7200 rpm. I think there is a bad sector comes but when i scan wth Norton Disk Doctor they didn't find any errors. Please help me.