LevelEd crashes cus of a Particle system.

[moon]

Greetings, me again, the bugmaker

Just wanted to add a own made snow particle system to my level, and as soon i do it, the editor crashes via EXCEPTION_ACCESS_VIOLATION

Error log,black box and particle system attached.
the level can be found here:
http://rapidshare.com/files/424792075/soms.rar

also the errorlog is kinda uhm errorous..hehe..

He says:
Processor Type: Intel Pentium
Windows OS: Windows 2000

but i have
Processor Type: AMD Phenom II X4
Windows OS: Windows 7 64 bit

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"Betatesters don't slap when finding a bug, but as soon it's declared as "won't fix""