We only tested this with Moodle 1.8.x, so not sure about 1.7 and 1.6.
When users view the result of choice, the result should grow from the bottom to up instead of from the top to bottom.
The following table shows the matrix of this bug
IE 7 IE 6 Firefox Opera 9
1.8 Ok Bug Ok Ok
1.5.4 Ok Ok Ok Ok
Screen shots are attached.