"0x071d454d" Does anyone know why I keep getting this each time I log off yahoo?


Answers:
It seems a memory address. Normally, when your computer encounters a "page fault" (that's the right name for it) it does show you what part of the memory (hence, address) failed to comply and the program crashes or gives you a page fault such as the error you got.
Since I don't know what is your Operational System (I'm guessing it's Windows) I could only speculate it's got something to do with any web browser "add-ons" you might have installed and they're not working properly.
Many things can create page faults, a few are:
-Shockwave Flash (bad installation)
-Java tools (corrupted files)
-Multimidia applications embedded in your Internet Explorer (RealAudio, Winamp, Media Player, etc)
I didn't encounter anything directly connected to the error address you provided, so it's something wrong with some of your own programs. Don't panic (yet) because these problems normally go away if you re-install the failing application, or remove it.
One last thing: if by any chance you recently installed a DivX application such as a Codec Pack (DivX is an application to enhance/playback compressed video files), my bet would be that your problem lies there.
Best of luck to solve your problem!
I don't know