[dba-SQLServer] Rollback an MDAC installation

This is why I never like to be on the bleeding edge anymore :(.

I installed Mdac 2.8 on my workstation, but the server still has Mdac 
2.7 SP1, whenever I run a transaction log backup from EM, I get 
disconnected... the backup still occurs (tho I've not tested them yet, I 
need to move them to my test server for that). 

if anyone know how to let me rollback my workstation to mdac 2.7sp1 
please kindly post a url or hint or even a sentiment of dude!, don't 
tell me your using a Dell! ;o)

Thanks,

-- 
-Francisco