I will check your Freeze Problems, but seems very strange. The Market Dialog is created during Run-Time at C.A.T. starts and is create invisible. When you press the button the Dialog became visible. If you press the LOAD button, and then you close the dialog, it only became Invisible.
I Will check....

here are the step
Click Market > select checkbox With Statistic Calc > Click Get Market Data
CLick X to close current windows
Click on Market again, > nothing show up and now if u click any other button nothing happen
Not a big deal as long u dont select checkbox 'With Statistic Calc'