When I do a large "copy and paste" into Microsoft Word in Windows 7 64-bit, a portion of the pasted item is underlined and immutable; when I pass the cursor over the underlined section a message displays that says that this source text is "unknown inserted".
I know that this is an NIS problem as NIS 2011 failed once during the paste operation and the pasted text displayed properly and the text was changeable. At that time, the only way to restart NIS 2011 was to restart Windows 7.
The same problem occurs in NIS 2012, although NIS 2012 has not failed as yet.
Please help me solve this problem.