Q - This is weird -- never seen this before. Has the tilde ~ character (SHIFT `, located in upper left, just left of the 1 key) - caused this behavior before?
For example, when we try to enter a new Product Category and use the ~ character (SHIFT `) - it doesn't display. Then the system locks up the control for any further entry until you close the screen or hit the ENTER or ESCAPE key.
A - Elliott V8 uses ~ as the potential function key for barcode scanning purposes. Please see the following article: