Your question is a lil confusing, you are saying that your offline messages are getting deleted now, do u mean they are getting deleted, or that they just aren't showing up? I doubt if they was there that they would get deleted. To view your offlines goto Tools on your main messenger window then offlines, to view your messages. I haven't had any problems with receiving offlines, but a couple friends of mine did, i heard something to do with what kind of id you have, if you aren't receiving offlines, you might want to make a new id. Also you could be missing a file that stores your offlines, I have seen that mentioned here b4.