Getting complaints from customers that their servers are slow? Maybe its because everyones using bandwidth to cruise the Web. A new survey on Internet usage at work by online career site vault.com shows surprising agreement between employers and workers that non-work-related surfing is rampant. For example, employers see 25 percent of workers surfing for fun 10 to 30 minutes a day, and 12 percent do it for more than two hours daily. Full details are at www.vault.com.