Excel 2010 Find NOT Working

[Pstloui]

Default Find Function Not Working - Solution
Issue where Excel find function stopped working correctly.

All, I have searched MSOfficeForums as well as other sites for a solution to this issue. When I noticed the sporadic problem occur, the only solution was to save, exit, re-open. Then, Find would work for a short while, then stop. Yes, I tried all of the suggestions, such as look in values, match case, match entire cell contents, but no luck.

Finally, I dropped the entire spreadsheet into Notepad and pasted back into Excel. Now Find works properly. The data was generated from a mainframe ASCII text file (yes ASCII, through SAS), then imported into Excel. This may be part of the problem, I don't know. Anyway, this seems to be the ONLY solution.

Also, quick note. I had used cell colors to visually delineate certain column groups. After pasting back in from Notepad, most of the cells lost coloring but some of the colored cells remained. I suspect issue may have to do will cell colors? Sounds odd, I know, but I suspect this may be part of the issue