Updated from 01/29/10Update includes news that Bank of America Web site is operating again. CHARLOTTE, N.C. ( TheStreet) -- Bank of America's ( BAC) main Web site was functioning again as of Friday evening after a number of online reports said it was out of out of order for most of the day. TheStreet was able to gain access to the site briefly Friday afternoon, but when it checked the site later in the afternoon, it was unable to get on the site. Readers posting comments on this story also said they could not access the main Web site. But a Bank of America representative Friday evening said the problem had been fixed as of 8 p.m. EST and that customers were once again able to gain access to the site. The Banc of America Online Investing Web site -- at https://www.baisidirect.com/live/login.jspv -- and the main Merrill Lynch Web site were working late Friday afternoon. Bank of America bought the investment brokerage powerhouse in 2008. A Bank of America representative said the company had ruled out a cyber attack as a cause, as some speculated online, but the company was working with its partners to determine the reason for the outage. Comments on the Clusterstock section of The Business Insider Web site indicated readers were apparently still able to use Bank of America applications for mobile banking on iPhone and Blackberry devices, but that the Bank of America site itself was unloadable. Bank of America shares closed down 1.3% to $15.18 on Friday. Volume was about 175 million shares late Friday. -- Written by Laurie Kulikowski in New York.