Final Cut Pro X crashes all the time

Hi,

Today I bought FCPX 10.0.7 but it crashes at least every 5 minutes within the easiest and basic tasks.

I use a brand new Mac mini, Quad Core i7, 8Gb RAM and with Fusion Drive. Are there any known issues with this setup? Anyoneelse is having the same troubles? Is there a chance to get refund? I didn´t expect this when buying software from apple.

The first few time is got the error message where I can send a diagnose to apple, but now there is nothing it just terminates without any warnings...