Investment banker feels the heat

Credit Suisse First Boston investment banker Frank Quattrone, whose Silicon Valley office managed the most computer-related share sales at the height of the internet boom, has resigned as he faces Government probes of allegations he destroyed documents to obstruct an investigation.

Quattrone was suspended last month after the firm found evidence that when he told his staff to "clean up" its files in 2000 he knew it was being investigated for how it sold shares of initial public offerings. Federal and state prosecutors in New York are now probing him for obstruction of justice charges.