PVCS# 609 -- Mixed mode Aquisition Enhanced Mode. Dual Tower to Single Tower problem Description: When using a sequence where you start with dual tower methods and then switch to single tower method you will get the following error. Macro: RUNMETHOD, Cmd: _dataname2$=dummy_name$ Msg: Undefined symbol: dummy_name$ Changes made to topseq.mac have been incorporated via a patch for G1701DA D.00.01 and D.01.02 files. G1701DA Patch File Name System File Name D.00.01 topseq_609_d_00_01.mac topseq.mac D.01.02 topseq_609_d_01_02.mac topseq.mac 1 - Backup the topseq.mac on your ChemStation (located under x:\msdchem\msexe) ie. rename to topseq_old.mac 2 - Copy the appropriate patch macro to x:\msdchem\msexe directory then rename to topseq.mac