Problems installing Altera Monitor Program with NIOS II EDS 10.0

In windows 7, press win+pause to enter system information. Press Advanced system settings -> Environment variables and look for "SOPC_KIT_NIOS2" in the System variables list. If it doesnt exist, create it by hitting "new". If the path is not correct, edit it by pressing "edit" :)

I'm not sure, but I would guess you have to type "export SOPC_KIT_NIOS2="path/to/nioseds"" in system terminal if you're using Linux.

wmlouds : it should point to where nios eds is installed

Hope it helps :)