I just availed myself of a 1D mark IIn and I have a couple of questions, neither of which I can get by RTFM and not much joy on Google either:
1. I put a 4GB SD card in alongside the CF card but the camera says it can't be formatted. Is this because it's 4GB? Has firmware got anything to do with it (my 1d has 1.1.0 and I believe that they have 1.1.2 or something now?)
2. The rubber cover for the lower connections on the side (video out, firewire, USB) is missing. I am certain it can be replaced but I can't find one on eBay, oogle or wherever. I find some that are not the same, but not that one...anyone ideas about where to look?
Cheers. 
EDIT: I want to change/mess with Personal Fnctions on the 1DMkIIn, but it says I need to connect using Firewire. My laptop does not have Firewire ports. I have HDMI, e-SATA, and USB2, and the Network one (LAN?). I would need this to change the camera user name too, as it says the previous owners name every time I import images in Bridge etc. 
Any ideas how I can connect with firewire to a laptop with no firewire (and no slots for cards either!)
Cheers

