A Floyd County High School teacher was cleared of wrongdoing Thursday after his school-issued computer played about five seconds of a pornographic video during an assembly last week.

In a letter sent home to parents, Superintendent Terry Arbogast said the pornography was downloaded "in the summer time, off school grounds, during non-school hours," and that Students Against Destructive Decisions adviser Stan Hawkins "did not have any knowledge of this occurring."

Hawkins, an assistant football coach and history teacher, had been put on leave this week while administrators investigated the incident, which occurred during a club meeting a week ago today.

Students with SADD were expecting to see a DVD on drunken driving and a debate between the Floyd County commonwealth's attorney and a local lawyer. The DVD stopped functioning, and a different media software played the pornography "by default," the letter said.

"We believe we have done what is reasonable and right in this situation," Arbogast said after posting the letter to the school's Web site. He said he used the Web site so parents could read the results of his investigation if their child did not take home the letter.

Arbogast said he and school technology employees worked all week to determine the source of the pornography. He said he interviewed "anyone who might have been involved," although he would not say who. Technology staff examined the computer's hard drive but did not find any other pornography, he said.

Arbogast said he "anticipated" that Hawkins would return to school, although he would not provide a specific date. Citing personnel privacy, he also would not say if Hawkins' leave was paid.

Students said some of their classmates at the high school wore T-shirts in support of Hawkins on Thursday. One handwritten shirt read, "We closed our eyes so ... Let the hawk back." Another read, "Be manly, support Stanley."

Hawkins would not answer phone calls to his home, but his wife said her husband had no comment.

Arbogast said his four-day investigation found that no other staff members or students were involved in saving the pornography and that it was the only inappropriate material found on the computer.

Hawkins was responsible for the school-issued computer, but Arbogast would not say if sanctions were taken against him. As a result of the incident, he said all teachers would receive better training on how to handle technology and be more "prudent."

"We're going to reiterate safety standards to teachers," he said.