All of a sudden when I save a psd there are no layers when I returned thist AM on any of the saves I made yesterday. They appear to be all merged layer saved as a psd. I have also been having a problem that when I try to save as - say a jpeg the above option such as iff (which is above jpg on the list) will come up instead, so I have to type in the jpg command. This anamoly starts on BMP.
Well, you screwed yourself by copying over incompatible plug-ins. Remove those plug-ins and obtain proper new versions from the vendors and install them.