Thanks. Had to delete my email account from N900 and reconfigure it. Before this I enabled this little neat labs thing and hide almost all the folders. Only folders that i´m not able to hide are "top folders" of some folders e.g. "trips\Berlin" "trips\Paris" and it shows in N900 top folder trips but not subfolders. Let's see how this works from now on and if it makes modest bit faster because only thing i´m interested is my inbox. For old mail i use gmail web interference and search because you can't compete with that