Architect 10.1C Editor Losing Focus

I've been busy the last few days and not editing much in the Architect Editor, and in the meantime (yesterday morning) our machines magically upgraded to XP SP3. Nothing else has been changed and no setting changed in Architect. Well with that out of the way first, I'm back to editing stuff in Architect today, and after typing a few characters, the editor will lose focus. Basically the cursor disappears and I have to reselect the position I was editing in the source. For example I was typing the following:

DEFINE TEMP-TABLE ttRaw NO-UNDO

FIELD

When I paused for a second after FIELD, the cursor was gone and I had to put the cursor back after the FIELD to keep typing. I then hit "c" and the same thing happened. Obviously I can edit like this and was wondering if anyone else has had these problems.

Thanks,

Don.