Hi, I have recently modified a program and hardware and I'm now getting error 3300. I have looked at the fixes on this forum and none have worked so far. The hardware config was 2 I/P cards, 2 O/P cards and a Q64AD card, there is now only 1 I/P card in slot 0 and 1 O/P card in slot 2, the rest have been replaced with blanks. I have uploaded the new parameter and program but I'm still getting error 3300. I've tried clearing memory ( not formatted yet as not sure what would happen). Any thoughts?