Searcher wrote:
I am probably too late (been away for a month) but I think you may have accidently either created or more likely opened an empty catalogue.
In the Library, goto File > Open Recent and see if there are any other catalogues listed. If there are, try them one by one until you find the one you were working on.
been away for a bit, but i did find them all. did a little research and ended up doing just that went to open recent and there was a list there and with clicking on those listed they all showed up again