EXHIBIT 24

                                POWER OF ATTORNEY

      Know all by these presents,  that the undersigned  hereby  constitutes and
appoints  each of Peter H.  Ehrenberg  and Laura R.  Kuntz  her true and  lawful
attorney-in-fact to:

      1.    execute for and on behalf of the undersigned  Schedules 13D and 13G,
            Form ID, and Forms 3, 4 and 5 in  accordance  with  Sections  13 and
            16(a)  of  the  Securities  Exchange  Act  of  1934  and  the  rules
            thereunder;

      2.    do and perform any and all acts for and on behalf of the undersigned
            which may be necessary or desirable to complete the execution of any
            such  Schedules  13D or 13G,  Form ID and  Forms  3, 4 or 5, and the
            timely  filing of such Forms with the United States  Securities  and
            Exchange Commission and any other authority; and

      3.    take any other action of any type  whatsoever in connection with the
            foregoing which, in the opinion of such attorney-in-fact,  may be of
            benefit to, in the best  interest  of, or legally  required  by, the
            undersigned,  including without  limitation the execution and filing
            of a Form 4 with respect to a transaction which may be reported on a
            Form 5, it being  understood  that the  documents  executed  by such
            attorney-in-fact on behalf of the undersigned pursuant to this Power
            of Attorney  shall be in such form and shall  contain such terms and
            conditions as such attorney-in-fact may approve in his discretion.

      The undersigned hereby grants to each such attorney-in-fact full power and
authority  to do and perform all and every act and thing  whatsoever  requisite,
necessary  and proper to be done in the exercise of any of the rights and powers
herein granted, as fully and to all intents and purposes as he might or could do
in person, with full power of substitution and resubstitution,  hereby ratifying
and confirming all that such attorney-in-fact, or his substitute or substitutes,
shall  lawfully do or cause to be done by virtue of this Power of  Attorney  and
the rights and powers herein  granted.  The  undersigned  acknowledges  that the
foregoing  attorneys-in-fact,  in serving in such capacity at the request of the
undersigned,  are not  assuming  any of the  undersigned's  responsibilities  to
comply with Sections 13 and 16 of the Securities Exchange Act of 1934.

      IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney to
be executed as of this 13th day of June, 2005.


                                        /s/ Martin Willschick
                                        ---------------------------
                                            Martin Willschick