We have a few users who just got new Windows 7 desktops, and their terminal emulators aren't behaving correctly. When they do some work at the end of a line (insert, delete, backspacing...) that is will sometimes:
1. extend the line past the edge
2. insert extra spaces between characters
Our tech support is at the end of their rope, and I've never run into this problem before.
The green screens were behaving normally on their old Windows XP desktops.