Hello:

The goal is to have a lightbox open automatically on the landing page asking visitors to donate. It's a temporary feature to last for the length of a donation campaign. I have not yet implemented this feature.

I understand that a lightbox can open automatically, as described here:
http://drupal.org/node/764862

However, I am worried about this functionality being interrupted due to pop-up blockers on the users' browser. This leads me to 3 questions:
1. Can pop-up blockers interfere with lightbox functionality in general?
2. Do these blockers distinguish between lightboxes that launch automatically (i.e. "pop-ups") and lightboxes that launch after a user clicks a button?
3. Would there be any work-arounds if the case of 1. or 2. is true?

Any help would be very much appreciated.