The Hard drive in one of my users Toshiba Satellite 320CDS quit working so I ordered a new one. The original drive was the stock 4.0Gb drive, the replacement is a 6.0Gb drive the laptop does not seen to acknowledge the new drive. I have ran tsetup to access the system bios settings and it says that there is no hard drive installed. I am running bios v 8.0. I have tried a 4.0Gb drive from another 320 in it and it works fine. I have tried the 6.0Gb hard drive in another 320CDS and it doesn't work there either. Toshibas website seems to be very unhelpful with this problem. Is there a problem with Toshiba 320CDS and 6.0Gb hard drives or am I doing something wrong?