my wd320 hard drive has been working fine for 6 months plus but just recently its started sticking at the bios screen sometimes boots to windows xp desktop work for a while then freezes. is my hdd failing any help would be much appreciated 

Could be alot of things. Download and run the Data Lifeguard Diagnostic from WD (or any other SMART monitoring software) to check your drive. I would also run a Memory test… Is this a new computer build … whats changed lately… any more info?

nothing changed just turned it on and it wouldnt boot but restarted a few time andmanaged to get into bios hdd not their changed time and date to correct time and date bios recognised hdd worked for a while then froze rebooted hdd not recognised thats were im upto now thanks for your reply