What an all encompassing statement.
Is there anything in particular that you hate?
Are the applications you are using badly designed?
I could go on.
The thing about it is, there are aspects of Lotus Notes that do my head in, infuriate me and cause me to come out in a rash. Similarly there are things about other programs, my house, my car etc.
It's a bit pointless saying "I hate something" without at least giving one reason.
Come on, give us something to go on.