Truth is, this machine is flakey. Maybe it's tempdb. It was setup by another group with way too many files, 16 on an 8 core box. We've been trying to take it down to 8 files. That may be neither here nor there but the reason we're stuck on 2005 SP3 is that I'm TOLD our server admin team tried to get it up to SP4 but that "it wouldn't take". That the original group put some incompatible software on it that prevented SQL from being updated. As far as I know this original group had only installed database drivers and the like on it so SSIS packages/jobs could pull from other sources.