PeachTree often insists on opening windows full screen and won’t allow any adjustments whatsoever. This is very inconvenient when you’re trying to get work done.
To correct it, backup of the registry first. Open Regedit and go to this key:
HKEY_CURRENT_USER\SOFTWARE\PEACHTREE\<PEACHTREE PRODUCT>\<VERSION NUMBER>
Highlight the “Positions” folder and delete it. This resets all Peachtree windows to their default.