Hi Peter,
There are two parts to the Library. There is the Library database and the Library window. The Library database needs to be loaded the first time it is needed. The Library window is kind of like the user interface for the Library database, but it isn't the "whole Library". There is also a lot of book keeping and such which goes on behind the scenes with the Library database. For example when you load an object via the Load button and if you have the preference to automatically add objects to the Library turned on then TG needs to load the Library database to do some things with it.
Yossam was describing a situation where he had delays the first time he did something like load an object but no delays after that. This is almost certainly because the Library database is being loaded. Now I can't say that I've noticed the Library database takes a particularly long time to load, even with all the Xfrog plants I have and a bunch of other stuff in it. For some reason it seems to be slow on some people's computers and I don't know why that is. However it does appear to be something which only happens once per session. That doesn't seem like a big problem to me, although it would be better if it was quicker.
It seems like you might be seeing the same thing. It's not very clear but it seems to me you were also having the delay only when the first object was loaded. Is this correct?
I was going to suggest deleting the Library database because that's what's taking the time to load. If you delete it then it will be empty. If you turn off all those preferences you mentioned then TG won't be adding stuff to it automatically. If the Library database is deleted and you no longer see the delays loading objects etc. then we'll know for sure it was because of the Library database being loaded. This is what's happened with your newly formatted machine (no Library database), although it wasn't necessary to go to all that trouble just to check it out.
Regards,
Jo