Browsers: Pop-Up problem with IE7

Pop-Up problem with IE7

I have switched over to IE7 on both my computers, and while it is working fine on my desktop, the laptop computer has a major problem when I use IE7. Whenever I encounter the type of menu where there is a arrow to click on, and this should bring up a choice of options, IE7's pop-up blocker reads this as a pop-up, and won't let me make a choice. Also. there seems to be no way that I can disable theis feature. I have followed all the directions for disabling the pop-up blocker, and nothing works. So now, I am very limited as to what I can do in IE7. For instance, I can't buy anything online because it stops me from selecting the expiration date on my credit card. Once I hit that menu to chose the correct month, IE7 blocks that function, and I am stopped right there! Any suggestions? By this I mean, any suggestions for an intermediate level computer user. I would classify myself as nerdy enough to get into tech trouble, but not knowledgeable enough to fix anything!

Thank you.

Gay