While I have had some "24 hour error stats" issues with various past versions, version with 5.0.2 it was/is working well
. However with 5.0.11 and 5.1 things have markedly deteriorated and I hope you can reproduce the error.
Running XP with 5.0.2 a reset of the 24 hour stats does what it should, the start time resets to the current time and average errors are reported starting from that time.
This does not happen for me in 5.0.11 or 5.1 the start time sticks to what ever it is on reset. Likewise when I start DSlstats each morning the start time is then the program start time (as I think it should be) but the errors include all errors since last reboot giving silly values.
As I said i hope this is something you can reproduce. i don't think it is anything to do with my standby habits.