I saw something like this before and coudn't see it in the bug section so I was to lazy to search
(!VER)
Windows Version: Windows XP, 5.01.2600
Messenger Client Version: 6.1.0211
Messenger Plus! Version: 2.54.0074
XP - Dutch
MSN Messenger - English
Messenger Plus - English
MSN Messenger - Skinned Windows X
When I switched to away the select a reason to be away window did not popup, so I thought I would do it manual with a predefined status but on the right side there was only 1 frame visible, So i restarted MSN Messenger and tryd again and it was back
today I got it again so I thought lets report
I use multiple accounts and sign them in shortly after each other. (say 6 seconds in between)
Scrny