What about Flow Scape logo? Does it stay up the whole time? How do you turn it off?
It sounds like a bug, I've heard of it happen before on a slow machine where it skips deleting the logo because it was trying to do too many things at once. I will take a look to see what I can do with this, maybe delete it after everything has been created possibly.
What kind of computer do you have?
Did you work out the controls?