Images not showing under XP clients, but working normally under Win7 clients

Em Client in XP clients is not showing inline images. Em client in Win7, are showing them perfectly. I ́ve played around with EM Client settings for showing unsafe content, and it still does not show images. Is this related to my OS? is there any way around this? Thanks!

Hi Andy,
how exactly are these images not showing? Do they disappear completely or is there a stand-in text instead of them? Are you perhaps viewing your emails in Plain text instead of HTML (check Tools > Settings > Mail > Read > ‘Read all messages in Plain text’ option)?