Hello suresh.r, Thank you for your question regarding a LabVIEW internal error. You mentioned that the error only occurred after using a help icon but removing is has not helped. There are a couple of scenarios that could be causing the error that you are seeing. Most likely one or more objects on the front panel are causing the video card to return this error. One possible solution may be to try disabling acceleration of your video card or installing newer video card drivers however you may want to read the following documents on trouble shooting this error.
http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/01b186b5ceb1d07786256747000f4319?OpenDocument http://digital.ni.com/public.nsf/3efedde4322fef19862567740067f3cc/16cf1334d094a4f6c1256be30074b9fe?OpenDocument Other resources can be found on the ni.com website by clicking the support tab at the top of the home page. Then search from Technical Resources at the top of the page for your topic. I hope these resources help! Let me know if you need any other support with this issue. Shea C. Applications Engineering