Hello everybody,
so it's the first time i come across a problem like this.
i got myself a new phone with Android 2.3.6 installed on it,i installed the HOTMAIL app and it apparently synced with my Hotmail account and my windows live messenger 2011.
 all was fine till i for some reason started deleting the only_e-mail based _contacts on my SIM contacts list( i thought why are those e-mails showing on my SIM contacts list where it should only be containing number-based contacts).
i sign in to windows live messenger on Windows 7 after a while and all of a sudden no contacts showing on my messenger list!
i tried several approaches but to no avail:
first of all,i tried re-adding contacts on messenger one by one. it added them back but, unfortunately the next time i signed in i had a void contact list ! .(did this multiple times )
i then went for deletion of the contacts cache as suggested in some threads but it didn't work for me.
i also tried uninstalling and reinstalling the windows live essential 2012 and still no use.

can you please help me figure this out.

Technical info: windows 7 ultimate 64-bit, windows live messenger 2012.