After trying the many tips suggested here, trying FF & Chrome browsers, etc., Gmail is still not up to its old glory in loading as the progress bar mostly stops at about 1/4. When I refresh the page 3-4 times, it will sometimes continue and load. Other times, I hit the standard view loading link which usually works then the basic HTML link which it switches to. :>(
It does seem to be loading correctly on the other laptop and our smart phones/ipad but not my laptop. Appears something is amiss. Have also run a comprehensive scan for nasties also.