I have this strange problem on my MacBook Pro, running Mac OS X Snow Leopard. It comes and goes, but I haven't found out why or when.
The input cursor is displayed in a text field, e.g. the URL field in Chrome or Safari. When I type some text, nothing shows up. When I click with the mouse somewhere, the text that I typed shows up. If I continue to type, the same thing happens. Nothing shows up until I click the mouse.
There is another annoyance that I think is related. In a larger textbox, like the Xcode editor, the same thing happens, but when I click the mouse, it selects all text from where the input cursor is to where I click. Then it outputs the text that I typed, replacing what where selected.
If I click multiple times, it will always select all text from where I clicked to where I last clicked.
I have no good strategy for solving the problem. Sometimes switching between applications solves it, other times I need to close the affected application.
Have anyone experienced anything similar?