Running FB 7.0.0.3450 on Windows 7 SP1.
The action Append To Text hangs my system when the text to append contains the ASCII char 0149 "•".
My test script to show this problem is:
Append To Variable - With or without a Variable used; Text to Append = "• Test"
MessageBox
When the MessageBox appears, the mouse cannot be used to click. The keyboard still works but I cannot close the Command window. I restart Windows at this point.
Strangely, this problem does not happen when running under Windows 7 SP1 in a Hyper-V virtual machine.