Sigurd,
Here are a couple things you could try:
-> disable Split view for the whole WPS
Go to 'Local System'-> 'System Setup' -> 'XWorkplace Setup' -> Features' -> 'Folder Features' and un-check 'Folder Split Views'
-> getting back the Drive Letters in Folders object
Not sure about this one... I think it is a residue of the PNG Desktop not properly de-installed. You could try:
Go to 'Local System' -> 'System Setup' -> 'Appearance' -> 'Icon Themes' and apply the 'IBM Merlin' theme.
-> changing system wide the folders view from "Standard" to something else
Go to 'Local System' -> 'System Setup' -> 'Workplace Shell' -> 'Folder Views' and choose the view you like under 'Default Folder View'.
Hope this helps!
Regards,
Dave McKenna