Rambus Inc. confirms its quarterly report will be late

Rambus filed a FORM 12b-25 which reads in part:

As described in its current report on Form 8-K filed with the S.E.C. on July 19, 2006, the Audit Committee of the Company’s Board of Directors, in consultation with management and after discussion with the Company’s auditors on July 17, 2006, concluded that the Company’s previously issued financial statements for the fiscal years 2003, 2004, 2005, which are included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2005, the Quarterly Reports on Form 10-Q filed with respect to each of these fiscal years and the financial statements included in the Company’s Quarterly Reports on Form 10-Q for the first quarter of fiscal year 2006, should no longer be relied upon and will be restated. In addition, the restatement will affect financial statements for prior fiscal years and the Company will reflect those adjustments as a part of the opening balances in the financial statements for the restatement period. Because the Audit Committee’s review is ongoing, the Company cannot provide a reasonable estimate and comparison of the results of its operations at this time.

It takes how many months to investigate the dating of options awarded 200 +/- employees?