Smileys dissapear when they become corrupt...i myself had it once when i installed smileys from one of them smileypacks (haven't touched those packs since). It's also possible that because of this you can't add new emoticons.
If that (impossible to add new) is happening and you want it to stop it's best to delete C:\Documents and Settings\<username>\Application Data\Microsoft\MSN Messenger\<IDnr>\CustomEmoticons (yes, now all custom emotes will be gone totally).
To help you determine wich ID number is yours you can use this program:
msg6_id.exe
quote:
Originally posted by bea
i haven't the last version,and i hadn't installed it!!!this is the problem!!
I'm sorry but i don't get you...can you tell me wich messenger version you are using?