Possible reason:
You are using Win9x (95, 98 and ME) and the photolist.ini file approaches the limit of 64K on Win9x. Win NT (NT4, 2K and XP) does not have this limit.
Solution:
Do not have so many photo and media files in a folder. This will reduce the size of photolist.ini file. This file is marked as system and hidden. You have to change your Windows Explorer's folder option to show system and hidden file in order to see this file. Each folder has a copy of this file. You can also manually edit this file with Windows Wordpad and save it back as text only.
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