Hmmmm. Can you possibly check the date/time on your executable? I fixed a huge memory leak right before I released 2.2 beta 1. My win98se test machine has been running for about a week solid and has collected about 120K samples. I'm wondering if it's possible that you *somehow* got an old version, or if this is a new memory leak that only happens at certain times (ie: 1 hop long routes? < 30 ms response times? Non-responding DNS servers? Any other ideas?).<br><br>My .exe is dated 3/15/2000 - and is 799232 bytes. I'd love to catch any bug with this before the next beta (which is getting pretty close).<br><br>Thanks!<br><br>