Text in Name box has gone red, coinciding with sheet recalculating slowly. Any ideas?

[thegurumonkey]

Help!


The text in the name box (that top left box that says which cell you're in) has gone a brownish red (and it remains so whether i click in blank cells, click in formulae, click on named cells, etc)


This behaviour coincided with the sheet suddenly going very slowly. This doesn't appear to be due to volatility or circular references or external links...


I'm stumped...


I assume the text would go red to show something is amiss, but you'd think they'd tell you what is amiss, or explain what the warning means..?


Has anyone else had this?


Any ideas?


Thanks all!!!