But Buckingham - who is to perform in Salt Lake City on Wednesday - blames the sound system at downtown Lincoln's Rococo Theater venue for the cancellation.

In a message on Buckingham's Web site, "technical difficulties related to sound" were blamed for calling off the Omaha concert earlier this week. Buckingham's message said the theater in downtown Lincoln refused Buckingham's request to use his own equipment to supplement its sound system.

"Lindsey prides himself on delivering the very best performance and production for every show, but in this case he wasn't able to do so," Buckingham's message said. "Lindsey hopes his fans in Lincoln will understand, and he looks forward to returning to Lincoln but under much better conditions."

Buckingham has been touring since October in support of his first solo album in 14 years, "Under the Skin." He is scheduled to play The Depot in Salt Lake City next week.

Rococo Theatre events director Pam Gregorios said this was the first time it has ever had a performer cancel a show.

"Rococo staff and management were put off by his diva-like behavior ... and wondered if he always felt it necessary to be so rude to people who are simply trying to put on a good show," Gregorios said.

Buckingham spent an hour checking the sound at the theater and rehearsing a couple songs before deciding to cancel about an hour before show time, Gregorios said.

"I can only speculate as to the disappointment of the six hundred and some odd fans who arrived to find the show canceled," Gregorios said.

Buckingham joined Fleetwood Mac in 1975 but bolted the group in 1987 over creative differences. The group has reunited twice since then for albums and tours.

Ticket holders will receive refunds.