Exhibit 16.1 Office of the Chief Accountant Securities and Exchange Commission 450 Fifth Street, N.W. Washington, D.C. 20549 April 17, 2002 Dear Sir/Madam: We have read the first through third paragraphs of Item 4 included in the Form 8-K dated April 17, 2002, of VA Software Corporation to be filed with the Securities and Exchange Commission and are in agreement with the statements contained therein. Very truly yours, /s/Arthur Andersen LLP CC: Kathleen R. McElwee Vice President and Chief Financial Officer