Western Digital Caviar SE16 WD5000AAKB - 500GB - 7200rpm - - IDE/EIDE - Internal 500 GB Hard Drive "dimension 1 control panel problems" Questions

Dimension 8300 ( both ATA) Not sure how to categorise the problem. My old Dell showed a full drive ( 80GB), mainly from my sons gaming. I installed a larger capacity Western Digital ATA drive and read