Hi, I'm running the above version of TNI on my windows 8 laptop. It's been perfectly happy since I upgraded to W8 about 3 weeeks ago but has started behaving oddly since last Friday. I now cannot open TNI unless I run it as admin; even when I get it open I can only change storage folders once before it locks up; when I close it it leaves an instance running which I have to close with Task Manager. I have tried uninstalling, cleaning up the registry, and reinstalling to no avail. I use multiple storage locations because I run TNI on my laptop at multiple locations and store the results for each site in a separate folder. Any assistance gratefully received.