Updated from 4:45 p.m. ESTDell ( DELL) made believers on the Street. Even after the company raised its revenue estimates in January for the fourth quarter of its fiscal 2002 from $7.6 billion to $8 billion, Wall Street kept its expectations down. After the closing bell Thursday, Dell reported $8.1 billion in sales, eclipsing consensus estimates of $7.87 billion, as tallied by Multex.com, and reminding investors that it is the expert when it comes to executing in a difficult PC sales environment. Dell credited its consumer personal computer business for an 8% sequential increase in revenue that helped the PC market share leader put together net income of $456 million, or 17 cents a share as calculated by generally accepted accounting principles. That figure met Street estimates and was a penny better than the third quarter's finish. In the fourth quarter of fiscal 2001, Dell scored revenue of $8.67 billion and net profit of $508 million. Dell shares dropped 1.9% in Thursday trading to $26.81. After hours, the company's shares were up 1.5%, according to Instinet. Management is hoping that strength in both its consumer and corporate businesses will help it kick part of the typical seasonal downturn. The company posted an outlook for its first quarter of fiscal 2003 that includes a 3% to 5% fall in revenue to a range of $7.6 billion to $7.8 billion, compared with a historical decline of 10% sequentially from the fourth to the first quarter. The company forecast 16 cents a share in first-quarter earnings and plans for gross margin to remain steady with the fourth quarter's 17.6% level. That 17.6% fourth-quarter finish is flat sequentially with the third quarter, as Dell had predicted.