Thanks again Alan for a response to help in understanding!!
I am going to have to revisit our issues actually... we JUST installed FP1 along with Hot Fix 4 from IBM on Tuesday of this week. We've been working closely with developers from the UK, our advocates on the IBM team, tech support, and our account manager. We were on 10.1.1 and this week we installed FP1 along with HF4 to our 10.1.1 on our Test server.
It has resolved 4 major issues we were having!

Our biggest was that with older models that were in 9.5.2 we coudln't open them up in Performance Modeler - it would just spin. However, the FP1 and HF4 has resolved that!! Major win. We had pretty much given up on Performance Modeler.
Our major issues though that we have been dealing with:
1) Servers (not the phyiscal server, but the model servers) crash intermittently when opening processes that use ODBC to connect to either .csv or Oracle databases. We have been working with Microsoft and IBM on this. The Microsoft Access Text Driver has somehow corrupted our Oracle DSN. We are removing text drivers all together. This one is being heavily worked on with the developers in the UK along with Microsoft so I don't think this one needs attention at this time.
2) Initial execution of a chore is very high (dramatically as in hours versus minutes) when a new alias is added to a dimension that is used in the chore. We have an APAR number on this and this was not resovled with FP1. I am unsure if HF4 fixed it though.
3) Not able to export to .PDF from TM1 Web (this is an odd one, we are able to from test but not prod but test is intermittent). Our admin has looked at regisry settings between the two servers, files, etc. - a lot of work has been put into this one as wel.
4) We get an intermittent error (only some of us - especially me) when trying to click on a model server to open it. We get "client name does not exist on server" and then I do "logon as" and it opens just fine. This has been intermittent and hasnt' happened for awhile. They have done/tried all sorts of things on this too.
5) We are trying to get TM1 Connector to work
6) We had a server crashing when selecting multiple elements, but FP1 and HF4 has resolved this
We have also just seen odd errors at odd times. For example, when I was screensharing with the developers in the UK this week, I was creating a process in PM and got an error but went over to Architect and did the exact same thing and didn't get an error. He was going to try and replicate in his environment to see if it was our environment or PM. Just general slowness of PM as well. We've just seen various things in the 6 months or so of being on 10.1.1 that make it seem like we have possibly various things in our environment (settings) that just aren't right. Or maybe our whole infrastructure just isn't set up quite right. We have our TM1 security pinging our BI servers, which are on 10.1 and were upgraded last Fall.
Anyway, just various things. Hopefully that gives you a bit of an idea of what I am talking about.
