MacBook "no button" trackpads not registering clicks

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A tip came in this weekend from someone with a fleet of new MacBooks. His complaint? Every 50 or so clicks and the trackpad freezes for 5 to 10 clicks and then wakes back up. The tipster writes:

So we’ve bought about 10 of them, all of them have awful problems recognizing clicks. The trackpad has a bug where it does not click about 60% of the time.

A little digging reveals a huge discussion thread on the Apple Discussion boards describing the recurring problem. Hopefully it’s just hardware as one poster comments:

I have found however one solution that I think did work for me (could be placebo effect but figured I should share regardless).

In System Preferences go to Trackpad, then at the top move the slider for “Tracking Speed” up one notch, I was uncomfortable at first but got used to it and it seemed to make the problem better.

Regardless, im pretty sure this is a software issue (disclaimer: this is just an opinion and is not based on any specific knowledge). Seems to me its the same problem that has occured in every laptop refresh apple has done in recent memory. When they released the first Powerbook with two finger scrolling users reported issues such as trackpad freezing, same with when they first introduced multy-touch, and now its happened with this, and every time they have fixed it pretty quickly. Anyways just my thoughts.

Anyone else seeing this? Hopefully this is just a driver issue. Sounds like maybe a cache problem?