stupidly had SABnzb associate nzb files when installing for a test run. After re-associating NB with NZB files the previous nice icon did not come back, but instead is a stupid box with a tiny NB icon inside it.
I tried re-installing NB, but this did not change the icon.
This reminds me that I wish NB had built in 'associate files' ability that would take care of all this for me... but
anyway, how do I get my (your) icon back for NZB files???