SW 2007 SP3 hanging

Is anyone experiencing serious hanging issues with SP3? Ithas gotten so bad with me and my associate that we have uninstalledand gone back to SP2.
The one area that forced the uninstall was trying to change thediameter on a cut extrude. With SP3 the machine would grind away upto 30 minutes and accomplish nothing (kinda like Inventor). Aftergoing back to SP2 the same change took seconds.
SolidworksGeneral