write in a cell and the cell above is temporarly hidden
 

In a worksheet that I inherited, I will select a cell and it highlights it as
usually. When I start to type, the cell above is then 'covered' and I cant
see what is written in the above cell. It seems like the cell that I am
working in temporarly expands, and covers one or multiple cells around it. I
am not merging the cells. Once I click out of the working cell, I can then
see all the info in all the cells. Any idea on how to turn this off?