The computer virus named for a tennis star who’s made a splash with her good looks didn’t cause many problems in computer systems. George Miller is the director of Drake University’s computer network in Des Moines. He says their virus software was able to filter out the virus.Miller manages 73-hundred e-mail accounts, and just 150 inbound “Anna Kournikova” messages were intercepted yesterday by his virus scanning technology.Miller says there’s been a “slight” increase in Internet traffic on the campus system.Miller guesses the increase is because students wanted to get on “Napster” to download music before the site is shut down by the courts.Iowa State University’s Administrator of Data Processing says she’s not aware of any big network problems on her campus, either. The top computer security person at the University of Iowa knows of just one “Anna Kournikova” e-mail making it through to the Iowa City campus, as current virus scanners intercept it.