Minor Bug with large grid result

Platform = Windows XP Pro
Language = English
Distribution you used = binary
Version you tested = 1.8.0 Beta 1 (Jul 13 2007, rev:6423)

When running the following statement SELECT RANDOM() FROM
generate_series(1,9000000); the grid is populated with 9 million random
values. When grabbing the scroll bar for the grid and moving(pulling) to the
lower records with the mouse at around record 7 million the values in the
grid start to get all garbled until the grid appears almost solid black.
This doesn't appear to happen when using the page up or page down keys or
the arrow keys or the mouse scroll wheel. Obviously this isn't a high
priority issue if this is all the problem relates to, but it's a problem
none the less.

Also if you scroll down until the data in the grid gets garbles and tab to
another app and back the grid window will have the contents of the app you
tabbed from under the grid. Looks like some kind of refresh issue.

Thanks
Bob