WASHINGTON (AP) -- -

On the first day of the enrollment period for the online insurance marketplaces that are a key part of the health care overhaul, people who are trying to register are running into problems.

The system is struggling to handle the wave of new consumers, and it's apparently being overwhelmed by a combination of high demand and technical glitches.

And a new Gallup poll has found that 25 percent of today's uninsured plan to stay that way.

Gallup says that two in three of those surveyed said they planned to get insurance rather than pay the small fine at the end of the year.  But, one in four say they will pay the fine.

The poll further found that under half intend to take advantage of the state or federal insurance exchanges when they are finally up and running.

Do you plan to pay the fine at the end of the year or purchase health care?