I heave set up remember to work with org as described in the manua

M-x remember brings up a choice of t or j

selecting j inserts a date into the buffer and I can append some text BUT
when I try to save the text (C-c C-c)

I get the following in the mini-buffer

File name [C:\home\org\journal.org]: c:/home/org

I want to save into the journal.org file but I seem to be getting prompted
for a different file name.

If I hit return I get a wrong type of argument error, if I add
journal.orgto the end of the suggested path and hit return I get the
same error.

Obviously I have something set up wrongly - can anyone suggest what it might
be ?

Many thanks,

Graham