'Could not connect to the GPS on COM 1' error message at launch
I just started getting the following error message when SD launches on my new G4:
'Could not connect to the GPS on COM 1.'
I am currently running the G4 inside my home off a PC power supply, while I get everything working before having it installed in my car. The GPS antenna is securely connected, but I'm guessing that wouldn't even matter.
The GPS was working until an hour ago today, shortly after I installed the X10 drivers (http://www.x10.com/support/support_soft1.htm) for the VA11A composite_video-to-USB adapter that I just bought (so that I can always have the rearview camera on, by splitting the signal from the backup camera and feeding it to both the USB adapter and the G4's backup camera video input).
Though I don't think the video-to-USB adapter is likely at fault anyway, because I'm pretty sure I launched SD at least a couple of times with no GPS error after installing the X10 driver. But without restoring Windows to an earlier backup, I can't tell for sure because the X10 uninstaller won't launch (gives a "Can't find install.log" error, which also happens when I tried on another non-G4 PC). Unplugging the X10 adapter and rebooting doesn't help.
(I get the same error when I switch to COM2 in the G4's GPS Settings), though of course it says COM 2 in that case.)
Is there some kind of diagnostic I can run to see what the problem might be? I have to figure this out soon because I am planning to get my G4 installed in my car this week.