I have re-downloaded and installed ModelSim 3 times, and gotten different licenses for each one, and are all giving me the same error when i go to "simulate" and "start simulation..."
# Reading C:/Modeltech_pe_edu_10.3/tcl/vsim/pref.tcl
# Loading project test
vsim -gui work.test_counter
# // ModelSim PE Student Edition 10.3 Jan 6 2014
# //
# // Copyright 1991-2014 Mentor Graphics Corporation
# // All Rights Reserved.
# //
# // THIS WORK CONTAINS TRADE SECRET AND PROPRIETARY INFORMATION
# // WHICH IS THE PROPERTY OF MENTOR GRAPHICS CORPORATION OR ITS
# // LICENSORS AND IS SUBJECT TO LICENSE TERMS.
# //
# // NOT FOR CORPORATE OR PRODUCTION USE.
# // THE ModelSim PE Student Edition IS NOT A SUPPORTED PRODUCT.
# // FOR HIGHER EDUCATION PURPOSES ONLY
# //
# vsim -gui work.test_counter
# ** Error: ModelSim PE Student Edition license key file not found at C:\Modeltech_pe_edu_10.3\win32pe_edu\..\student_license.dat.
# ** FATAL ERROR: ModelSim PE Student Edition licensing failure due to one or more problems with the license key such as:
# - it is not found
# - it has expired
# - it is not for this user
# - it is not for this computer
# - it is not for this version of ModelSim PE Student Edition.
#
# Please go to
http://www.model.com and download an updated copy of the ModelSim PE Student Edition.
# Error loading design
# Start time: 13:50:36 on Jan 27,2014