Item 5.02 Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers

Effective December 17, 2004, the Company has appointed Gregory J. Melsen as it Vice President of Finance and Chief Financial Officer. Mr. Melsen replaces Mr. Thomas E. Oland as Chief Financial Officer. Mr. Oland continues as Chief Executive Officer and President of the Company and as Chairman of the Board of Directors.

Mr. Melsen was most recently employed by PLATO Learning, Inc., a publicly held provider of computer-based and e-learning educational software, where he held the position of Vice President of Finance and Chief Financial Officer since 2002. From 1999 to 2001 he held the position of Vice President of Finance, Treasurer and Chief Financial Officer of American Medical Systems Holdings, Inc., a publicly traded medical device manufacturer. Mr. Melsen has also held financial positions with AVECOR Cardiovascular, Inc. and PACE Incorporated. Mr. Melsen's 30-year tenure in accounting and finance included 19 years with Deloitte and Touche, including nine years as an audit partner. Mr. Melsen served as audit partner on the Techne Corporation engagement. Mr. Melsen is a Certified Public Accountant and is 52 years old. The terms of Mr. Melsen's employment are set forth above under Item 1.01.