Yep, do a memtest first. Floppys are really cheap and can go bad quickly so check that as well.
There are three Revisions for this board (rev 1, 2, and 3). Make sure your board revision matches the driver set.
Also, you may want to download a fresh copy from the Gigabyte website. It could be a corrupted file from a bad download. A file download manager might be helpful. (That is if you downloaded the driver) If there is an installation disk with the driver on it then I would suggest using the driver on the disk and then updating the driver once Windows is up and running.
One last thing, I noticed that there is not a utility for making the driver disk in the download from gigabyte which means you have to copy the files and folders over to the disk manually. Sometimes the program is expecting a file in a certain location and if it cannot find that file will throw up and error. There is a readme.txt with the download that shows the proper layout of the disk.