Apple is following-up reports that its new Intel-based iMacs are experiencing video problems preventing the full display of some graphics.

The glitch has come to light via Apple's discussion forums, and is said to be more of an issue when launching Apple's Front Row remote controlled media software.

Users have complained of seeing white lines across their screens. The streaks, also called 'video tearing', are also visible when moving the iCal window around and using certain functions in iMovie.

The company said in a statement: "Apple is aware of this and is looking into it. If a customer has any technical issues, they should contact AppleCare."

In a research note, American Technology Research analyst Shaw Wu downplayed the problem, stating that he did not think any form of recall would be necessary.

"We believe the video glitch with Front Row can be easily fixed with a software update," he said.

Some users have suggested that the problem can be eased by setting the machine's display to 'thousands of colours' rather than 'millions of colours'.

Enthusiast site ConsumerMachine has posted some other tips and further information about the issue.