Cursor stops moving briefly on MacBook?

[FullmetalZ26]

I bought a MacBook (black, week 21) at a local Apple store yesterday, and I've noticed that every now and then, the cursor disappears and/or stops responding to the trackpad. It lasts for probably 3-5 seconds, and I usually find myself searching for the pointer while moving my finger back and forth on the trackpad until it shows up suddenly. Anyone else heard of or seen this, and any recommendations on how to take care of it? I reinstalled OS X right after getting it (to save space), and ran through Software Update last night. For the record, the machine doesn't moo or whine, but can get rather hot sometimes (idles anywhere from 52 to 67 degrees C). Thanks for any input!

 

[FullmetalZ26]

Serves me right for not googling first... After looking this up, it seems that the "ignore accidental trackpad input" option in System Prefs is the culprit. It's just as well, since that option doesn't seem to help much with said 'accidental input.' Haven't had it happen again, though, so this is a good sign...