Please post your Startup-Sequence, your User-Startup and a listing of ENVARC.
You can do so by creating 3 files, using the 3 commands below
Type S:Startup-Sequence >SYS:SS.txt
Type S:User-Startup >SYS:US.txt
Dir all ENVARC: >SYS:ENV.txt
Copy these 3 files to your PC, and post the output here. I don't think you have fully removed NewIcons yet.