Dell slides to lowest price in 3 years COMPUTERSDell skids after poor forecastDell tumbled to its lowest price in more than three years Friday after forecasting a fourth straight quarter of declining sales, a sign that a slump in demand for personal computers will persist. Even as Chief Executive Officer Michael Dell works to mitigate the decline by adding storage, networking gear, software and services through acquisitions, the company still gets half its sales from PCs, and it won't quickly get relief from the release of a new version of Microsoft Corp.'s Windows operating system. The $4.5 billion agreement announced Thursday resolving federal criminal charges and claims by the Securities and Exchange Commission left the company at risk for as much as $17.6 billion in potential fines from alleged violations of the Clean Water Act and demands by the federal government and Gulf states for enough money to restore the region's coastline and waters to their condition before the spill. Europe's second-biggest oil company will face resistance from both state and federal authorities in trying to resolve the remaining pollution violations and natural resource damages claims, said Garret Graves, chairman of Louisiana's Coastal Protection and Restoration Authority.