TObjectList and bitmaps

I am using a TObjectList to store pointers to Bitmaps generated
from a scanner. I can also open bmp files and add them to the
TObjectList.  I have the problem that only after scanning a
bitmap into the ObjectList that there seems to be a bitmap of
zero size.  However, I can add them no problem by opening one
from disk.  Has anyone seen where adding data to an Objectlist
will "erase", or should I say does not save the bitmap.


Thanks,

Rich