Note, however, that InterNIC is not the only domain-name register, although it is probably the most used. Buy the rights to the domain name. He transferred it to McDonalds after they agreed to make a donation to a Brooklyn school's computer program. The matter was latter settled out of court on unknown terms. Make a demand for transfer, then file a lawsuit.
Actual confusion is the best evidence of a likelihood of confusion.
Any evidence of actual confusion is strong proof of the fact of likelihood of confusion. If there is no actual confusion, conducting a survey is very helpful. This makes it a worthwhile cause of action. Despite this final consideration, even unregistered marks are protected. The courts have characterized unfair competition expansively.