Hi, For some reason when I try to place a port the port's width once it appears on the screen is the full width of my sheet and shows as 32000mils once I get the properties page to show the width, height of the ports. This started about and hour ago and no amount of shutting Altium down and/or restarting my PC corrects this problem. This is driving me absolutely nuts

I tried Tools->Preferences->Set To Default (lower right hand corner) but that makes no difference. The first time I tried this I got some error about an object being used after it was deleted and nothing seemed to happen.
This is 19.1.8 and figured that maybe this stupid problem is addressed in V20 so I go to the update pane and it tells me to click update but the update button is grey out. why? I am logged in to Altium so that's not the problem.
Currently when I select exit(alt-F4) from the menu nothing happens and I have to kill Altium from the task manager.
Is there a way out? Do I have to uninstall and reinstall? Is there something else I can try?
Trust me, it is a monumental effort not to swear here.
Thanks,
Vince