Question..

I'm wondering if there are any fixes yet for when you're getting an error if you alt tab to much,because I like being on msn ,and changing music etc when I'm playing,but then when I'm trying to get back,I'm getting an error sometimes..and that's really annoying >.<
And another error is that,if you don't login fast enough,you get an error too..
anyone here that know how to fix this?