There some automaticaly saved pp2 files with increased length. Some of them opens and some not and Ping Ploter 2.50 responds with error:

Error Loading file: C:\path\name.pp2
Invalid file data.

Opens first two files 9 & 18 KB length without errors. Since 28 KB length Ping Ploter generated files doesn't opens.

Seems a bug.. !? <img src="/forums/images/graemlins/confused.gif" alt="" />