the device works fine for quite a while, but after my harddrive died and I reinstalled my computer, I needed to reinstall the drivers again to use DC60. I found the drivers for both stk1150 and stk 1160 chip and tried both, and I can't seem to get any NTSC signal but still works for PAL signals

I have a digital camera that can output both PAL and NTSC signal and I tried both to verify that the device still works for PAL signals but not NTSC signals. is this thing busted? I am considering getting something else that last a bit longer than this if this one is dead for good.

the device always default back to Pal after each session so I thought it was driver problem but further testing shows the device only works for pal signals and no other, which is odd because being able to read 50hz and 60hz signals are just a single capacitor or resistor difference or something like that.