LS430Lexus

The gen 2 nav on my '02 UL w/160k has been acting funny for the last few days. A day or two after setting with the calibration function, it loses the location and points in the wrong direction 5 to 10 miles away. I reset it and it happens again. Not a huge deal as the car will be disposed of in a few weeks. (Acquired a pristine '03 w/65k a month ago.) Just curious if anyone else has experienced this.

(BTW, I am a fan of this nav system. Simple, easy and has gotten me where I want to go. Yes, it is dated but still reliably functional.)