I'm very sorry to hear that Bookworm!
*head desk* My whine....GPS system woes.
My mom got me a Mio digiwalker C310x for Christmas last year.
It's an ok system for $200 but it has it's issues like OLD maps (from as early as 2004! :O -which in this area IS OLD because so much has been developed in the last 2 years.)
So mio...after a year of saying they would released their new maps....I was so excited! Finally maps that were accurate!
But wouldn't you know...mio won't accept my device's SN for the upgrade! EVEN THOUGH MY device (complete with serial number!!) is registered on their website!!! I've been to gpspassion and looked to see if anyone else has had this issue and tried the cheats they listed and nothing.
I am so annoyed right now....and OF COURSE Mio tech support is day shift only, not to mention the few times I've had to deal with them I have had to explain myself several times due to the tech speaking little to no English.

I should have bought a Garmin.
In fact I am really considering it.
OK thanks for the VENT/RANT!
Anyone else get P.O'ed when technology doesn't work the way it's suppose to?