Page Down Scroll Size

[Compupix]

How do I fix the page down scroll size? It keeps getting reset by something.

In the file:
"C:\Documents and Settings\Owner\Application Data\Winamp\winamp.ini"
I changed
plscrollsize=16
to
plscrollsize=57

Every so often, and quite often, it gets reset to 16.
How do I fix it to what I want?

I also tried setting it from Preferences > Playlist > Scroll playlist using page Up/Down. But, that never allowed me to set it greater than 16.