Headphones making a scratching/cutting out sound

I have These headphones... they are about a month old.
The problem is, on media player or FSX or wherever, the sound keeps juttering and sounding a bit scratchy. At other times the sound will hold and be like a mixture of death and ear bleeding for about 15 seconds before it returns to scratching
The drivers are all installed...
Win Vista Home Premium
Cheers
The problem is, on media player or FSX or wherever, the sound keeps juttering and sounding a bit scratchy. At other times the sound will hold and be like a mixture of death and ear bleeding for about 15 seconds before it returns to scratching
The drivers are all installed...
Win Vista Home Premium
Cheers