Well, now that the files are hashed, that's one thing out of the way. If you give some information about your system, memory, etc. that might help too. Others may have some input. I set my memory high for LimeWire (50000 K) Others think it's fine at around 5000 or 10000 K. Regardless of what you set it at, it uses up alot of memory. But leaving it at the default can cause it to freeze and run slow. Buttons disappearing and such. Give that a try. I'm sure it will eventually work itself out.
p.s. That's why I said to walk away while it's hashing. It takes a LONG time.