The INST: Total on the logpage is the sum of the 10 legs on the logpage. Each legs Inst. filed is on the third line second from the left. Check to make sure you are entering correct values.
Please send me a copy of the APDL-200510.ddd file and the date you are referencing to email@example.com and I will take a look.
APDL Development Team
NC Software, Inc.