ieframe.dll not valid, huh?

Ok, so text on webpages (as I speak) is randomly disappearing and reappearing. I cannot even see what I am typing. My computer, a week ago, wascrashing explorer.exe whenever a folder with video files in it was opened, not hte videos themselves opened. And whenever I try to us AIM, and after a while with Firefix, or Maxthon, the "Windows" frame would be invisible and all I would see is my desktop. I releded windows and at first it seemed liked like it worked but now it is acting as I stated previously. And,m, when I opened AIM a few minutes ago an error message popped up that said basically "windows\system32\ieframe.dll is not a valid windows image" and all of the "Windows frames" around programs and folders is all messed up. I dont understand what is wrong and I have not had a problem with a computer in years, can anyone help?

 

I appreciate the assistance, but as I stated in my post, there are plenty of other symptoms as well that the other perosn did not describe. Does anyone have any actual advice?