When the installer detects the possible refresh rates, they
at least *appear* reversed.
The actual monitor is an IBM 6556 P72, which when selected shows
Horizontal: 30.0-85.0 Vertical: 50.0-150.0
What was detected and shown:
DDC Probed Monitor: @BM199c
Horizontal: 50-150 Vertical: 30-85
*** This bug has been marked as a duplicate of 12490 ***