Boy, do I miss spaces between sentences and after punctuation, and uppercase letters at the start of sentences. I'm not kidding, it makes your post a lot easier to follow (and me more inclined to try answering).
It sounds like you have an installer running in startup items. You could check System Preferences > Accounts > your account startup items and see if there is something there. If there is, and you think it is safe to remove, you can highlight it and click the "-" button. Is there any indication as to what is trying to be installed? A yellow triangle does not bring anything to mind.