When starting C1, I have to wait for the "new stuff / ads" popup to appear, otherwise if I start doing something, I lose input focus on what I was doing. I don't want to "not show on startup", I want to have it come up, and dismiss it after I review things I might not want to miss- but there is some odd delay in it appearing.
Current workaround
I have to be paitent for several seconds, and while my mother would be proud, I find it annoying. :)