I have had a forerunner 305 for a couple of years and an edge 205 for 6 months, had no real issues with them, they do take a few minutes to acquire satellites, and I do occaisionaly accidentally switch them off (much rarer now I have got used to them).

The biggest problem is with the training centre software which crashes and wipes out the history every month or so, I have learned to back it up frequently.

All in all I am pretty chuffed with them, and am now considering getting an edge 705.

Had an 205 for just over 12 months, no issues with it (touch wood) other than I had to reset it once because it crashed.

I use mine a lot and its been through a lot.

I have been really pleased with it!

I'd say that they inherently do have a problem and have to be cold reset to get em working again.

I'd send it back and ask for something else because:

If its yourself thats causing the problem then the store needs to prove that its you thats making it function incorrectly.

If its the unit, then the store need to address it and give you an alternative as its not doing what its supposed to do.

Ring Garmin up as well, they're pretty helpful.

They are good robust units in general, i've had two of them, first one just wore out as I used so much.

I have a 305 that I never use if anyone wants to offer me sensible money.

Tim

I've had a 305 for about 4 mths now & it's great.The only problem I've had is the same as above,the training centre software crashing.Which I now also back up everytime i use it.....

 Just luuuurve the "Virtual Partner" thingy.......

(yes i know it's sad)