I have a customised links2 installation, it is tried and tested working ok.

However I find I have 1 problem. Part of the customisation is subcategories like yahoo mod. When sub categories are added online through links admin they display fine, however after I download the categories db to make modifications to the info and re upload the subcategories for each maincat disappear, but everything else is fine. I used a plain text editor to make the changes (wordpad) and this has been ok in the past. the db is properly structured and has no errors.

Any ideas why this happens? Its driving me mad

Thanks.