My mouse stopped scrolling on an open Excel spreadsheet.

[John_Hancock_1939]

The mouse scrolls on other Excel popup windows and other applications.  Is there a setting I don't know about to turn on/off scrolling?

[#2]

@John_Hancock_1939 1st step would be to confirm you don't have frozen panes turned on.  

[#3]

@DexterG_III 

I did have it on but was trying to scroll below the frozen planes at the top. I turned the frozen planes off and it didn't make any difference.