LSMW import erased existing objects (IMP)

Hi,

I tried to import LSMW objects from another system into one of my client systems. A message came up saying, "Objects that already exist in the target system are marked with a cross and are overwritten during import". Upon going to the next screen, none of them were marked with cross. I completed the import and when i went back to check, all the previously created LSMW objects were deleted/over-written. I checked the tables in the back-end while debugging, "/SAPDMC/LSGPRO" doesn't have the projects values. But all the other tables concerning the mapping rules, file structures, fields in the uploading structures "/SAPDMC/LSO*" had the values intact. Can anybody tell me how to fix this problem? I hope my description of the problem is clear!

thanks,

Venky