I guess I'm the third person with that problem. I used a dab of gorilla glue, and it hasn't failed since. But it's good to know Epson will be there in case there are any further problems.
While we're on the subject of the 3800, back in December I posted here that I bought the 3800 from Amazon for $1100, then applied for the $200 rebate. I wasn't sure if Epson would honor the rebate since it said the printer had to be purchased from an authorized professional reseller (and I'm pretty sure Amazon isn't considered a "professional" seller). Well, they honored it, so I got the 3800 for the same price as a 2880. More kudos to Epson...