I'm curious if any of you have seen a similar problem and what if anything you did about it. I have a Garmin 530 hcx that I am very pleased with. But I noticed a crack in the casing near the upper right corner of the battery pack. I pointed it out to my brother in-law who pulled his out and noticed a crack at each of the top corners near the battery on his. They both work fine, just odd to see the cracks as this will compromise watertight integrity.