Revised: It worked if I moved to another USB port (??!?!).
After SAM-BA has detected the USB driver and I've selected at91sam7x512-ek and then click "Connect", SAM-BA pops up "Error in startup script" "Error h_handle returned zero" etc.
I'm using Windows 7 64, .NET 4.2 and SDK 4.2.
Any idea what could cause this to happen?
Are you using SAM-BA 2.12 fixes some issues with x64 os's...
Also are you using the driver in "drv" folder where you installed sam-ba too or the generic GPS camera driver that windows update discovers, try uninstalling the driver in device manager and manually installing the Atmel driver?
Finally have you erased your ND (3.3v to the gold erase pad) before you try and connect with sam-ba?