Exhibit 99 FINANCIAL STATEMENT SCHEDULE II ALLSTAR SYSTEMS, INC. VALUATION AND QUALIFYING ACCOUNTS AS OF DECEMBER 31, 1999 (In Thousands) Balance at Charges to Charge to Beginning Costs and Other Other Balance at Description of Year Expenses Accounts Changes End of year Accumulated provision deducted from related assets on balance sheet: Allowance for doubtful accounts receivable: 1997 $ 219 $ 386 (66) $ (290) (A) $ 249 1998 249 3,410 (3,301) (A) 358 1999 358 916 (1,046) (A) 228 Inventory reserves: 1997 $ 111 $ 456 $ (551) (A) $ 16 1998 16 1,900 (1,916) (A) 0 1999 0 512 (511) (A) 1 Reserves other than those deducted from assets on balance sheet: Allowance for doubtful vendor accounts receivable: 1997 $ 200 $ 198 $ (49) (A) $ 349 1998 349 1,049 (1,243) (A) 155 1999 155 1,270 (1,117) (A) 308 <FN> (A) Reductions related to amounts written off. </FN>