Hi!
There is quite an intense debate on the Macromedia ColdFusion web site about SP2 messing up things
I have had problems myself after upgrading to SP2 (Windows update was hanging!) so after spending the usual two days raiding the net and Microsoft's knowledge base I eventually > wrote < to them (there is a "Write us" at some point on Microsft's web site if you dig deep enough) and got a Customer Care representative who ran me through a number of trials to no avail after which he threw the towel and handed me over to a Microsoft Support Professional who really was extraordinarily supportive and after another two days sent me a number of commands to run in order to recreate registry parameters.
Now since you are having a problem with an Excel macro (I have an innate respect for people who are able to get Excel macros work

) IF - and this is a big IF - you bought EXCELL in a box you can call Microsoft directly and they will help. If it was pre-installed they will direct you to your computer supplier
I see no other option than to go to Microsoft directly because this whole SP2 issues thing is so new I believe only they can help you out.
Good luck
Best from Brussels
John