It goes green and fuzzy

take it to a shop

I doubt it's the 360 since everything else is working just fine. The menu works fine, the game works fine. However if you downloaded one of these maps from the marketplace it may be corrupt, and you will have to delete and re-download the map pack.

your problem is related due to no proper connection of your driver yo the web cam
may be the compatibility issue is there
so check for the proper drivers supported by your pc

Configure a webcam can take the course, however, a series of simple manipulations can improve the performance of your equipment.
Launch the Configuration Wizard

Close your audio or video conversations. 
Then, in the main MSN window, go to: 
Tools> Adjustment of audio and video

Adjust the picture

Once the setup wizard started, let yourself be guided by it. 


Select your webcam (its name should appear in the list) and click "Next." 


A window appears and prompts you to set your webcam. Check the layout and image sharpness. If the image is fuzzy, adjust the lens of your camera until the image is sharp. Then click next.


Adjust the sound

Once the camera set, the wizard offers to adjust the sound. To do this, select your microphone in the selection, either the webcam or a microphone plugged into the microphone on your computer. 

Then select the speaker output of your sound card to hear from your speakers. 

The wizard will then adjust the volume of your microphone. To do this, move the cursor until the sound obtained is satisfactory. Then click "Finish". Configuring your webcam is complete.

Harris, The camera is not fuzzy, it is out of focus. All webcams have a ring around the lens. Start the webcam sitting in front of it. Now rotate the ring clock and anti clockwise and focus it on yourself. When you see yourself satisfactorily you can stop there. That is the correct focus of the webcam. Remember, whenever it seems fuzzy, see if you are not sitting too close or too far from it. If you are then focus it again on yourself.

probably this might cause by a conflicting windows update. i would suggest try to do a system restore first, restore it to the time when the webcam was working fine. after system restore if it works then i want you to disable the windows update from control panel. if this fails then proceed to uninstalling and resintalling the webcam driver.

the outer ring around the lens can be turned to adjust the focus

Fuzzy is a funny word. I never use it to describe a picture problem. That because fuzzy can go too many different ways. There is snowy fuzzy, blurry fuzzy, grainy fuzzy, and demodulated fuzzy. If the set goes out of focus intermittently that has something to do with the focus ciruitry. If it goes grainy that is a front end problem, usually tuner related. The other types of fuzzy are generally associated with problems in video processing some where. So, which is it?

Oh, and BTW that unit has three small picture tubes in it, one red, one blue, and one green. It doesn't have a 'bulb'.

lifecam.exe has stopped working vx-6000

well go to sound settings and trun down the volume its in the system configuration