I discovered that the 2.20 Beta 1 version has a tremendous memory leak. If left to run for several hours, it eats up so much memory that many functions, including my browser, fail to work properly. Attempts to load new programs result in "out of memory" messages when I have 256MB of RAM.<br><br>In answer to your questions:<br>1) I did not have this problem with 2.03.<br>2) I am only pinging the first hop in my network.<br>3) I do have a second machine attached, but problems with my ISP (the reason for running PingPlotter) preclude me knowing if the problem extends to my other computer.<br><br>I am running Win98 SE on a dual Celeron 466 system with 256MB of RAM.<br><br>