My Problem is I have been trying to upgrade from 4.0 to 4.5 and stuck at very first server :-)I think I have installed advanced edition of 4.5 but I have Resource manager installed along with it and not only on this new server but I can also see this on other 4.0 servers as well. issue is I have been having some date and time issues on new server with 4.5 which looks like is no one knows how to solve. I'm planning to uninstall 4.5 and reinstall 4.5. my question is by doing this i hope it wouldnt affect any other server on the Farm, they all are 4.0. reason i'm worried is because I see resource manager on other servers too; so does that mean 4.5 server has updated the farm and now it leaves some configuration there or when I uninstall 4.5 on new server it goes away gracefully.if i dont make any sense please ask; need some as soon as possible.thanks in advance.