4gl 6.0 bugs

can anyone help me with the following bugs found converting 4.0 to 6.0 on ncr 3450 using wyse 50 terminals: termcap situation whereby any after field processing causes your field delimiter to be displayed as the first character of the input? can not do a prepare on a temp file, get error -363 cursor not on select statement. getting lots of -1227 message file not found. fetching a cursor into a decimal variable - when not found does not set status flag to 100. it has not been smooth moving our 4.0 code to 6.0 and recompiling and testing. thanks, sheldon