Hello all. I have a Cateye Astrale 8 on my bike. It's only about 5 months old. Sometimes if I start clicking through the functions after I've been on the bike for 1-2 hours it will go to zero and won't reset. No amount of wiggling, unclipping and reclipping, etc. seems to make it want to start working again, it just reads zero. It doesn't go blank, just reads zero on all functions. The sensors are all lined up just right, and the next time I go for a ride it usually will be working just fine again, for awhile. Has anyone had this problem? Is it just the battery or something? Thanks.