HELP! I got a weird error on messenger

Problem description:
when i open messenger, it gives me windows live messenger has stopped working
Error code/error message:
didnt get any
What has been tried so far:
restarting, reinstalling
Messenger version:
wlm 2009

Windows version:
Windows 7 SP1 7601 updated

It happens right when you open the messenger, or is it happening when trying to log in?