IMPORTANT ANNOUNCEMENT (06/19/2008)

This announcement contains important information concerning the default investment elections in the PDS 401(k) Plan. If you do not make an affirmation election to the contrary, the notice will govern how your retirement accounts will be invested. You are encouraged to visit the Merrill Lynch website at www.benefits.ml.com to review the prospectus for each fund your money will be invested in. A paper copy of each prospectus is also available to you free of charge by contacting the Merrill Lynch Retirement Service Center at (800) 228-4015.

• 401(k) Fund Change Announcment - Plan Default Change

Enroll, set and change your investment strategy and savings rate.

• Contribution rate changes can be made online.
• Contribution percentage has been increased from 20% to 80%.
• You may now contribute 1% to 80%*** of your pay. If you want to increase your current contribution percentage, you can now make those changes through the Merrill Lynch website.***The contribution limit remains at 20% for Highly Compensated Employees (Employees who earned more than $100,000 in 2007).
• The contribution limit for 2008 is $15,500.00. Those participants aged 50 or over are eligible for a catch up contribution of an additional $5,000.00.
• You can select your delivery preferences for statements and confirmations to either receive them online only or continue to receive by regular mail. To enroll or make any of the above changes, click here.

• PDS 401(k) Service Distribution Request - An active participant over the age of 59 1/2 is eligible for an in service distribution.
• PDS 401(k) Beneficiary and Status Form
• PDS 401(k) Summary Plan Document
• PDS 401(k) Summary of Material Modifications (12/06)
• PDS 401(k) Online Enrollment Kit
• PDS 401(k) Plan Fee Disclosure
• PDS 401(k) Rollover Form - This form is used to roll over qualified plan funds into your PDS 401(k). Complete and return to PDS Technical Services, ATTN: Human Resources, 1925 W. John Carpenter Frwy Suite 550, Irving, TX 75063.
• PDS 401(k) Loan Payoff Form - This form is used to repay loans taken against your plan funds. Contact Merrill Lynch for your payoff amount at 800-229-9040. Complete and return to PDS Technical Services: Human Resources, 1925 W. John Carpenter Frwy Suite 550, Irving, TX 75063.
• Aviant 401(k) Group Savings Plan

PDS ROTH 401(k) INFORMATION
With the Roth 401(k), your contributions are made using "after-tax" compensation - after you have paid federal, state and local taxes. Therefore at retirement or termination of employment, if you meet the requirements for a qualified distribution, withdrawals of any investment earnings, as well as your after-tax contributions are tax-free.

• PDS ROTH 401(k) Enrollment - enroll, set and change your investment strategy and savings rate via the Merrill Lynch Website.
• PDS ROTH 401(k) Contribution Option Brochure - PDS has added a new type of contribution option to give you greater control of your retirement strategy, is the ROTH 401(k) option better for you?
• PDS ROTH 401(k) Scenarios - Is the PDS ROTH 401(k) right for you? Review these hypothetical scenarios to decide if the ROTH 401(k) or the traditional 401(k) contributions will benefit you based on your financial circumstances, your current tax situation, and your expected tax situation at retirement.
• PDS ROTH 401(k) FAQ - Answers to frequently asked questions regarding the ROTH 401(k).