Hi adp,
We've known about our upload problems for a while, and we're trying desperately hard to fix them. We understand they are a pain in the butt, but what's driving us mad is that we can't duplicate the problems ourselves, which makes it impossible for us to really get to the root of the problem.
About the multiple windows thing--we think we caught the problem, but just to be safe, try to use only one browser window at a time. I know this can be a little limiting, but we don't want any data being mixed up, which would be even more frustrating. But, again, we think we caught this one.
-Jake