Having trouble going online to a 90-30 CPU through the SNP port. Only started after switching to Windows 2000 from 98 (needed to do CLogix programming). Can usually get online, then locks up when trying to look at data table values. Anyone run into this? COM port works fine with VersaPro, RSLogix, etc. CPU is a 331; could the old firmware be the problem (under 5.00).