How do I get rid of this?

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http://androidforums.com – I have an HTC Desire HD that I got around may last year and it hasn't been fantastic. The worst part of it being that recently it has started making a navigation program pop up constantly. Whenever I plug in my phone (which has to be quite often with the battery life) a navigation program will randomly pop up on my screen without any warning and no matter how many times I hit exit when it pops up. I can't use any sort of task killing program to get rid of whatever is causing it to pop up either because it doesn't show up. This program pops up around every 10 seconds and sometimes more tha (General)