I installed SP1 and wound up backing it out. No matter what browser I used, I could not get a download to complete. It would stop at about 95% completion. Also had trouble with the Intellitype software not completing its' installation. After backing out to Win 7 RTM version, the first thing it did was to correctly install the Intellitype driver software.
I think I'll wait 'til after the Mar 8th update day to try to re-install. By then they should have been able to shake out all of the problems.