Information and communication technology (ICT) acceptance and use is a prolific research stream in the information systems (IS) field. One major theoretical influence is the Theory of Reasoned Action/Theory of Planned Behavior (TRA/TPB). While the research stream achieved high consensus and validation in IS, the interest in attitude, an important concept in TRA/TPB, has gone through ups and downs over the past decades due to the lack of predictability of attitude for behavioral intention In this paper, we clarify both conceptual and operational confusions by providing clear definitions of two different types of attitudes and detailing their relationships to each other and to behavioral intention. Empirical data confirms that attitude toward behaviors is a better prediction of intention than attitude toward objects (ICT); attitude toward objects has positive influence on attitude toward behaviors. Attitudes toward a previous version of the software and its use have significant impacts on the current attitudes.