My computer will not let me play online games or even games on my pc?

I really enjoy playing spades on Yahoo Spades but I can only get to the page where the rooms are and then I cant get in Actually, it will let me play no games. My pop up blocker is off. I installed DP Security Suite which would let me get in but would soon kick me out. If wasn't long before it just wouldn't let me on at all. I uninstalled but it didn't make a difference. It left lots of updates in the computer. I reinstalled still same problem. Please help me but don't just tell me what to do tell me what to do and how to get there. Step by Step as I am no computer genius. Please no smart answers.