Ok. I'll try that and let you know. Thanks.

If I got the information right, these are the file size for gmapprom and gmapdem. Yours may be smaller because it does not include Canada (?)...

gmapprom
2011.10 - 1,290,592KB
2011.20 - 1,311,808KB
2011.30 - 1,356,384KB

gmapdem
2011.10 - 1,198,560KB
2011.20 - 1,198,560KB No Change
2011.30 - 1,198,560KB No Change