I have a : -MP 4x3.00 (v 1.1) -with a internal 4 disk raid10 (software via os x,about 80-100Mb/s) -interal sata for render scratch -FW400 for render scratch -10gigs ram (i´m aware of the 2gig limit of FCP) -Crappy 7300GT Now taking the first feeble steps in FCS editing with fotage from eos5D mkII, 1080p/24 and getting the dropped frames warning. It is practically impossible to do stuff. So I am now trying to pinpoint to the cause,as I thought that (apart from the gfx card) the system should be well capable of handling the editing? I would appreciate if someone could point what to do to get stuff working! Tried different render settings from the system and user preferences without any help.. Is it the gfx card to blame?