I have imported mapping data for the UK from ESRI shape files using Proc MapImport, which worked very well. I then ran the mapping data through Proc Greduce to get a density variable for quicker mapping - which also worked well. I then use Proc Gmap with the choro statement to produce my map along with tooltips hovering over areas and the ability to click and drill down for lower level maps. This all mostly works, but my problem is that some of the areas in my map seem to be undefined or have errors. I can hover over most areas and get a tooltip, and the pointer turns to a finger indicating I can drill down. However when I hover over just a few areas on the map the pointer does not change, I get no tooltip and cant click to drill down. I am using IE6, although I did just try this in Chrome and the problem is still there.
Has anyone seen this behavior before and does anyone have any idea how to fix or get a workaround?
This is done on AIX, SAS 9.1.3.
thanks
Phil Mason
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