We've been on B6241 since Monday morning, and it looks much better with M6. Yes, possibly premature to declare it fixed, but I thought you would like to know :)
There may still be a leak issue, but I only hear it from the developer doing web stuff. I'll see if we can get a bit sharper on the problem.
PS: Forum tells me I can only post content once every 900 seconds. Why is that? Major pain!