2 Problems! (Sofortnachrichten senden und Kontakt ist [off])

Hello people.
For me there are two problems. If I am with my girlfriend or MSN Live Messenger Windos wants to write from time to a few messages from me not be sent. This is for all versions of Messenger with me so. But is only now and then and sometimes I can also send messages. Although not a serious problem but after a time it is annoying.
Please help. (No Trillian or something similar)

The second problem is that they are sometimes referred to as offline when I appear, even if it is on. Then register it again, then again when offline and so forth. It is consistently the whole time on. Strangely, and this is only their way. In my other contacts it works correctly. The online-offline annoying problem when Camen, because whenever it is shown as offline, the cam from.
Please also here to help.

Thank you in advance ever.
Greetz Holy Diver

Make sure you are both on the same version. I've noticed this problem from time to time with users that are on a different version. I think this also happens sometimes when there are communication problems with the Windows Live server. I'm not certain anything can be done about it.