Microsoft Excel - Spell check freezes Excel

Spell check freezes Excel 2007.   Same result if I use F7 or "Review" - Spelling
Have to kill with task manager (Win 7)

Performed a repair using the original install disc.  Rebooted.  No help

How are you trying to launch spell check.
and can you try a macro?

Sub Macro1()
For Each w In Worksheets
w.Cells.CheckSpelling SpellLang:=1033
Next
End Sub

Simple marco you can put in and try to run that way.

Don

Performed a repair using the original install disc.  Rebooted.  No help -> Then most probably its due to some Trojan or Virus, scan your computer with some good anti virus

What troubleshooting steps have you taken?

Questions about your environment:

Have all released Microsoft patches for Office been applied to the client?
Do you use virus scanner with updated definition files?
Do you use a mixed version office environment, for instance, Office 2007
Standard with Access or Project 2000 or 2003? I know that if Office Standard
2003 is installed and then Access 2000 is installed after it that the
Spellcheck dictionary files are overwritten with the older version causing
Word to crash immediately when opened.
Have you tried creating a new profile for the user and try duplicating that
issue, or have another user without the issue login to the PC with the issue
and see if you can duplicate it?
Have you tried renaming any files in the xlstart folder for excel and the
normal.dot for word to see if it resolves the issue?
Are macros used in your environment?
Is the Office Document Converter pack installed?

I know this is not a solution, but I hope this helps identify the problem.