Do we know how to make the NXT server more stable. As it is each time it hangs, for personal use it is annoying, but not that big of a deal. Unless you are racing to the airport and can't send NXT!
What I'd like to know, what developers doing about this? Because if I know they are working on it, I can be patient, but I find it worrying that a few times this problem was bought up, it was simply brushed off as not important, or even nonexistent.
New features are important, some of them I'm very much looking forward to, but these stability issues absolutely should take priority.
There's a thread in this forum about bugs in the code release. After my client had been attacked, I analyzed, what exactly happened and figured out, how the attacker managed to get the clients to basically crash. JLP and CfB fixed that now mostly by 0.5.3, the only thing that is left is the actual browser page. So when you see negative blocks, just refresh the tab in your browser and everything will look normal again. On the server side (communicating with other NXT clients) the server now behaves normally, even if you don't refresh your browser window.
If you want to see what kind of bugs we're finding and that are getting fixed, jump over to
https://bitcointalk.org/index.php?topic=397183.0