Irvin, since you had changes made to your computer, check to make sure you screen magnifier is not pushed up a bit and not over 100 present. Sounds like your screen settings have been altered. The actual percentage of magnification can effect how big and how many galleries appear on each row. We see it as normal but you do not because I can assure you the magnification setting has moved from 100 percent to something higher. Check that out. And also check out the computer settings if you are viewing images on the monitor HD / wide screen monitor mode or standard size screen setting. That too changes effect of images horizontal on the screen.
Of course while your computer was down, Sean made minor changes were in fact made to the tab's below your gallery's this probably occurred while your computer was away... Your account at pixel.com or your artistwebsite there use to be a tab box right below the gallery, that is no longer there.
Cheers, Michael Hoard Principal Actor, Artist and Photographer