Thanks for that. I have been hacking the .gps a lot lately, and have it all sorted for my 2010 season. The text for the corner data is in there so that's why I thought the locations may also be in there somewhere. But if you don't know where the info is stored Lo2k, I doubt anyone will!
In that case, I'm gonna make blank transparant corner markers so there'll be nothing displayed.
Cheers.