Paul Ceglia, the man who claims that he has a huge ownership stake in Facebook based on a 2003 contract with network co-founder and CEO Mark Zuckerberg, has suffered another setback in his case against the company.

Ceglia must give Facebook access to all his e-mails dating to 2003, a judge ordered Tuesday. The Associated Press reported that Ceglia’s lawyer, Jeffrey Lake, had requested to delay access to the e-mails so that Ceglia could object in court.

It’s just the latest blow to Ceglia’s case.

On Monday, The Buffalo News reported that a judge has denied Ceglia’s request for a delay of trial and that he has missed a deadline to submit five computer thumb drives with evidence backing up his claim. Ceglia reportedly had until late Monday to hand over the evidence to the court, the report said. His lawyer, Jeffrey Lake, told the court that his client could no longer find the drives in question.

Facebook has accused Ceglia of forging the contract between him and Zuckerberg, and repeatedly denied there is any truth to his claims. In a recent interview with ZDNet, Ceglia fired back, saying that Facebook had planted an altered file on his computer.

Zuckerberg has said that he did some work on Ceglia’s StreetFax product, but that their dealings had nothing to do with Facebook.

(Washington Post Co. Chairman Donald E. Graham is a member of Facebook's board of directors.)

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