Non-hidden Hidden rows

[ChemistB]

For some reason I cannot see anything above row 43 on the spreadsheet. I tried unhiding rows, clearing print area, checking sheet properties, etc. I can move up to A1 using the cursor, even enter data or formulas but I can't see it except in the formula bar. What's going on here?

ChemistB

[ChemistB]

Okay, I figured out to "Unfreeze Panes" Why was it doing that?

ChemistB