why is my windows live messenger cut out when I leave the home page and the messenger where my contacts are to IM goes blank

my messenger is set to show when I turn on my computer and when I go to windows live home page it's still fine but if I leave the home page to go to another web site it cuts out and the messenger goes blank and it will say re connecting in ...and then it counts down showing a time and then when it gets to 0:00 it says it's reconnected but I'm not. and then it won't acknowledge that I'm signed in.the only thing that fixes it and it's just temporary is to  restart my computer and then it all starts all over again. I checked the status of all the services and they all say everything is normal. should I try to uninstall it and then reinstall it. I've had major problems with it in the past also and had to pay at tech to fix it,twice now. I even went to the Help and support but couldn't find any answers to trouble shoot because I have Firefox as my browser and it only helps IE. I'm at my wits end,help please!