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# 36909 3-Jul-2009 12:49
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I am trying to install Google maps on my Glofiish and it is saying that 

"Installation was unsuccessful. The program or setting cannot be installed because it is not digitally signed with a trusted certificate.

Is there a setting I can change so the programme can install?

Sorry to be so needy but I have no idea how these things work but I am pretty good at following instructions :)

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BDFL - Memuneh
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  # 230668 3-Jul-2009 13:21
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You should Save the file when asked, instead of Open the file. Once it finishes downloading, use File Explorer to execute it.

Also, remember this device doesn't have much memory, so always install on a memory card.







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  # 230775 3-Jul-2009 16:50
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Thanks, yet again Mauricio,

It works a treat. as does you tube from my other query.

 
 
 
 




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  # 230780 3-Jul-2009 16:55
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I have signed up as a paying member, $8 a month is a small price to pay for the advise given already.

But watch out, my laptop skills are far from perfect...



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  # 231003 4-Jul-2009 15:20
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I am just curious, once you have gone into an area and the map has downloaded, is it stored, or does it re-down load each time?

Also I have opted got the $10 a month 100mb plan on Vodafone prepaid, how many MB does the mapping stuff use usually, is 100mb/month a lot/enough for a normal PDA running windows live, hotmail, google maps and checking the weather each hour? I have downloaded a few programmes to set the thing up but alot of that wont really be repeated after the initial set up.

z2k

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  # 231007 4-Jul-2009 15:41
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Google maps will always re-download map content. The usage isn't that much I'd say about 1 mb for an hours drive?

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  # 231482 6-Jul-2009 11:08
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No, it won't re-download the map content. If you check the filesystem, there's a cache file (cache-GLM.dat) and GMM will load from the cache file first. I know because I often use it when I don't have an active net connection. 

On a fresh install, what I do is when I'm at home (have access to home net) I fire up GMM and scroll through all the areas at different zoom levels I'm interested in, so that when I'm on the road GMM won't download any map data at all. It might complain that no data connections is available, but you can ignore it and it works just fine. 

Also, the data usage is less than 1 MB an hour (unless you're at the max zoom level and are driving for an hour on the motorway!) - from experience, if you're loading a fresh map, it's more like ~300 KB per hour, but again, that's if you're loading new map data.

I have most of Auckland city and South Auckland at navigation-worthy zoom levels and my cache file is less than 7 MB.


The 100MB plan should be more than sufficient.



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  # 231488 6-Jul-2009 11:14
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thanks again :)

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  # 231491 6-Jul-2009 11:18
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Btw, incase you're hard-resetting the phone (or flashing a new ROM), you can backup your Google Maps data (like cache, preferences, favorites etc) from the \Application Data\GoogleMaps folder. Just copy the whole folder somewhere and after you reinstall GMM, copy the folder back and you won't have to re-download or configure anything. :)

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