Garmin StreetPilot c340 Car GPS Receiver

I am having several problem issues with my new c340 and wanted to find out if these are common problems that I have to deal with, or that there is something wrong with my c340 and I should return it.

First of all, I always have problems acquiring a satellite --which I find odd for living in Los Angeles. The unit is on my dash and has a clear path to the satellites in the sky. There are no tall buildings around me at all. I live near Universal Studios and all other major studios -- so I don't think it's considered a weak area for satellite reception. If I end up sitting under an underpass waiting to get on the freeway, the c340 always loses reception, even if it's for less than a minute. Is that normal? When I start up the c340 for the first time each day, it takes about five or six minutes before it finds a satellite. sometimes it doesn't after fifteen minutes and I have to shut it off and start again.

Is there a chance that I was sold an older unit (Dec '05)? The map seems to be outdated. The version is 210. I've only had the unit a week, and it's already taken me to three restaurants that are no longer at those locations (or never were). The unit has also given wrong street names, therefore causing me to miss my exits off the freeway. Is there a problem with the c340 recognizing freeway exits in Los Angeles. So far in three days, the c340 has failed to recognize at least a dozen popular exits on major freeways in Los Angeles, US 102, 134, 5 and 170. It will tell me to exit at the name of the street that the freeway exit drops me off on, but that is not always the name of the exit. For example, it told me to take the Laurel Canyon Ramp -- there is no Laurel Canyon Ramp. There is an Oxnard ramp that drops you off on Laurel Canyon. It has done this on all freeway exits that have this situation.

Is it also possible to send me another plastic disc for the dashboard to hold the suction cup? In California, apparently you are not allowed to suction the c340 unit to the windshield. The disc that came with the unit, had very weak double stick tape on it, and wouldn't stick to the dash -- so I'm temporarily attaching it to the windshield, hoping I don't get a traffic ticket.