Have a Canon MV750i which PC recognises via Firewire connection and I can always start video capture. It will generally then stop at random for no apparent reason, sometimes seizing/crashing PC. I understand that my spec is okay: AMD 2200+, 140 gb available HDD space (7600rpm & 8 mb Cache) 512mb RAM, Windows XP SP2 etc so can't fathom out why this happens. Have tried with WMM, Ulead 5 & 8, Pinnacle Instant CD/DVD 8 & Roxio but the same thing happens. Recently reformatted HDD so can confirm that this occurs with no software loaded other than XP. I note that system will not recognize Camcorder if Canon's drivers are installed so have to use those in XP. Any ideas out there? Does your graphics card make any difference to capture?