Intel confirmed yesterday that it will delay shipments of its upcoming Montevina chipset by as much as two months, with a formal launch in late-August. The delay could push the update to the MacBook notebooks to much later in the year.

“There were two minor issues we found during final testing – one with our integrated graphic chipsets, which we have found a workaround for but need to re-screen our parts, and second around our wireless Wi-Fi chip, which was a paperwork and certification mistake we made,” said Bill Kircos, a spokesman for Intel.

“Both of these led us to establishing a launch date for our mobile processors and discrete chipsets of the week of July 14th, and taking a couple of weeks to get the right readiness and volume for the rest of our components,” Kircos added. “We’re looking at early August for that.”

As a result of the delays Apple is unlikely to begin volume shipments of Montevina based notebooks until much later in the back-to-school buying season.

According to previous reports both the MacBook and MacBook Pro are expected to receive updated looks, the MacBook adopting an aluminium enclosure and the MacBook Pro taking some design hints from the MacBook Air.