(a), (b), (c) and (f).  This Schedule 13D is filed on behalf of (i) Endurance Partners, L.P., a Texas limited partnership ("Endurance"), (ii) Endurance Partners (Q.P.), L.P., a Texas limited partnership ("Endurance QP"), (iii) Endurance General Partners, L.P., a Texas limited partnership ("Endurance GP"), (iv) Ewing & Partners, a Texas general partnership ("E&P"), (v) Ewing Asset Management, LLC, a Texas limited liability company ("EAM"), and (vi) Timothy G. Ewing, a United States citizen ("Mr. Ewing").  (All such persons are collectively referred to herein as the "Reporting Persons".)  This Schedule 13D relates to the Common Stock of the Issuer purchased by E&P, a registered investment advisor, for the accounts of Endurance and Endurance QP.

The present principal occupation or employment of Mr. Ewing is managing partner of E&P, whose principal business is serving as manager to Endurance and Endurance QP and manager and general partner of Value Partners, Ltd., a Texas limited partnership.   The principal business of EAM is serving as general partner of Endurance GP and as a minority partner in E&P.  The principal business of Endurance GP is to serve as the general partner of both Endurance and Endurance QP.   The principal business of Endurance and Endurance QP is investment in and trading of capital stocks, warrants, bonds, notes, debentures and other securities.

The principal place of business for all of the Reporting Persons is 4514 Cole Avenue, Suite 808, Dallas, Texas 75205.

(d) and (e).  During the last five years, none of the Reporting Persons have been (i) convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

The Common Stock was acquired by the Reporting Persons for investment purposes.  This report is filed because the Reporting Persons have determined that, as of the Reporting Date, their continued holding of the Common Stock may have the purpose or effect of influencing control of the Issuer.  

The Reporting Persons expect to communicate with the Issuer regarding its current operations and prospects, possible changes in the composition of its board of directors or management, and other matters pertaining to its business.  The Reporting Persons may in the future acquire additional Common Stock or other securities of the Issuer, in the open market, in privately-negotiated purchases or otherwise and may also, depending on then current circumstances, dispose of all or a portion of the Common Stock beneficially owned by them in one or more transactions.  Additionally, the Reporting Persons reserve the right from time to time to formulate plans or proposals regarding the Issuer or any of its securities and to carry out any of the actions or transactions described in paragraphs (a) through (j) of Item 4 of the instructions to Schedule 13D, to the extent deemed advisable by the Reporting Persons.

Except as set forth in this statement, none of the Reporting Persons currently has any plans or proposals that relate to or that would result in any of the actions or transactions described in paragraphs (a) through (j) of Item 4 or the instructions to Schedule 13D.

(a) The Reporting Persons may be deemed to beneficially own collectively an aggregate of 4,753,973 shares of Common Stock, representing 9.8% of the 48,726,594 shares of Common Stock outstanding as of May 1, 2006 (according to the Issuer's Quarterly Report on Form 10-Q for the quarter ending March 31, 2006 filed with the SEC).  The Reporting Persons other than Endurance, Endurance QP and Endurance GP each expressly disclaim beneficial ownership for all purposes of the Common Stock held by Endurance and Endurance QP.

(b) Endurance and Endurance QP are advisory clients of E&P.  Endurance is the beneficial owner of 1,028,542 shares of Common Stock, representing approximately 2.1% of the outstanding Common Stock.  Endurance QP is the beneficial owner of 3,725,431 shares of Common Stock, representing approximately 7.6% of the outstanding Common Stock. Endurance GP, as the general partner of Endurance and Endurance QP, EAM, as the general partner of Endurance GP, and Mr. Ewing, as the member of EAM, may be deemed, for purposes of Rule 13d-3 under the 1934 Act, to be the beneficial owner of the shares of Common Stock held by Endurance and Endurance QP.

Since E&P's advisory contracts with Endurance and Endurance QP grant E&P sole investment power and sole voting power over the securities owned by its advisory clients, E&P may be deemed to be the beneficial owner of all of the 4,753,973 shares of Common Stock, representing 9.8% of the outstanding shares of Common Stock, owned by Endurance and Endurance QP.  Mr. Ewing, as managing partner of E&P, may also be deemed, for purposes of Rule 13d-3 under the Securities Exchange Act of 1934 ("1934 Act"), to be the beneficial owner of all of the shares of Common Stock owned by Endurance and Endurance QP.

However, all of the Reporting Persons other than Endurance, Endurance QP and Endurance GP disclaim beneficial ownership of such shares of Common Stock owned by Endurance Fund and Endurance QP, and disclaim membership in any "group" with respect to the shares of Common Stock for purposes of Sections 13(d) and 13(g) under the 1934 Act or for any other purpose under any other provision of the 1934 Act or the rules and regulations promulgated thereunder.

(c) None of the Reporting Persons have effected any transactions in the Common Stock during the 60-day period preceding the date this statement was filed.

(d) No person other than the Reporting Persons has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the securities reported in this statement.

(e) Not applicable.