When block selection is enabled in IE8 with fixed columns the selection jumps around making proper selection impossible. Selection of one column is impossible, and when copying the data that is selected it is possible to get a copy of the cells data from the fixed column. (which is not the documented behaviour)
This problem only occurs in IE8. In IE9, chrome, firefox and safari it works properly.
We have attached a sample (a modified 01_grid_selection.html from the samples included with the grid) file that illustrates our problem. 01_grid_selection.zip (3.49 KB)
P.S.
This post has also been submitted as a Ticket (ID: ULO-579828) but I thought I would post it here because someone else might have the answer and it is critical for us to get this working as soon as possible. We have spent a few days on this issue.