1 EXHIBIT 23(b) INDEPENDENT AUDITORS' REPORT ON THE SCHEDULE To the Board of Directors Next Generation Network, Inc. Eden Prairie, Minnesota Our audits were made for the purpose of forming an opinion on the basic financial statements of Next Generation Network, Inc. taken as a whole. The supplemental Schedule II is presented for purposes of complying with the Securities and Exchange Commission's rules and is not a part of the basic financial statements. This schedule has been subjected to the auditing procedures applied in our audits of the basic financial statements and in our opinion, is fairly stated in all material respects in relation to the basic financial statements taken as a whole. /s/ McGLADREY & PULLEN, LLP Minneapolis, Minnesota February 25, 2000 2 A. SCHEDULE II NEXT GENERATION NETWORK, INC. VALUATION AND QUALIFYING ACCOUNTS Years Ended December 31, 1997, 1998, and 1999 BALANCE AT CHARGED TO BALANCE AT BEGINNING OF COST AND END OF II. DESCRIPTION PERIOD EXPENSES DEDUCTIONS PERIOD ------------ ---------- ---------- ---------- Deducted on the balance sheets from the asset to which it applies: Allowance for doubtful accounts: Year ended December 31, 1997 .......... $ -- $ 45,363 $ 363 $ 45,000 Year ended December 31, 1998 ........... 45,000 100,640 26,640 119,000 Year ended December 31, 1999 ........... 119,000 223,989 222,989 120,000