Exhibit 99 FINANCIAL STATEMENT SCHEDULE II ALLSTAR SYSTEMS, INC. VALUATION AND QUALIFYING ACCOUNTS AS OF DECEMBER 31, 1998 (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: 1996................................. $ 464 $ 890 $ (1,135) (A) $ 219 1997................................. 219 386 (66) (290) (A) 249 1998................................. 249 3,410 (3,301) (A) 358 Inventory reserves: 1996................................. $ 368 $ 743 $ (1,000) (A) $ 111 1997................................. 111 456 (551) (A) 16 1998................................. 16 1,900 (1,916) (A) 0 Reserves other than those deducted from assets on balance sheet: Allowance for doubtful vendor accounts receivable: 1996................................. $ 250 $ 119 $ (169) (A) $ 200 1997................................. 200 198 (49) (A) 349 1998................................. 349 1,049 (1,243) (A) 155 (A) Reductions related to amounts written off.