Logging capacity SMA 500v

Hi,
I'am maintaining a bunch of SMA appliances and was always wondering what the logic behind the onboard log storage was? Most of the time I can see around 500 log entries max, the rest got discarded. But on my SMA running 10.2.0.3 I saw this:
Did the latest Firmware release changed the storage for onboard logs? What is the capacity for onbox logging?
Funny side node, I can scroll through these entries only in classic mode, contemporary mode gives me the eternal spinner. But only in forward direction, if I skip to the end of the list and try to go back to start or 100 items back it gives me this:
--Michael@BWC
Category: Secure Mobile Access Appliances
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