I got my computer virused-up and unvirused thanks to the services of MBAM, and too any others to name.
In the process, something's changed with my keyboard. There's a problem with my space bar. When I tap the space bar to separate one word from the next, the cursor doesn't move. When I type the following word, the space appears between the first and second letters of that word.
The droll sentence, "The quick red fox jumped over the lazy brown dog." would appear as:
"Theq uickr edf oxj umpedo vert hel azyb rownd og ."
I can create a space between words by placing the cursor where the space should be, tapping the space bar and tapping the --> arrow key. While this creates a space, it sends the cursor rapidly across the screen, as though I am holding down the space bar.
I can stop its progress by tapping the backspace button, or a button corresponding to a letter.
Other than this, the arrow keys are either non-functional, or work as usual. The page-up/page-down buttons work as expected.
Because of the uniformity of this dysfunction, I'm inclined to believe that it's a systemic thing, not a mechanical error with the keyboard.
Because I had to wipe the drive to get it unvirused, my "restore point" is gone. I've tried uninstalling/reinstalling Windows 7, uninstallling and reinstalling the keyboard driver(s), and updating them. Apparently, I have the most up-to-date iteration of drivers available for Windows 7, already.
Before I turn this thing into a very expensive, aerodynamically unlikely clay pigeon, could someone please tell me how to fix this problem?