.AVI from Sony Vegas 7.0 + Vista = Error Message... HELP!?

I simply recently started have this problem i have have vista and Vegas work fine together for about 3 months. Now i am incompetent to open any of my .avi files rendered from Vegas. I am competent to open the .Wmv files that be rendered from Vegas. I did just just this minute update through Windows updates and I also installed a Mcafee Security Center. After restarted my computer the Errors started to occur. I own updated before but zilch like this have ever happened. Could McAfee be cause the problems??

I have tried first the .avi files in Every video program i enjoy but an error message always pops up saw that the program has stopped working, and window must close it. I do have the divx codec installed and i know that it have been set to cause errors beside Vista but every thing seem to be in working writ before i updated and installed McAfee. I haven't tried uninstalling McAfee but because i really don't know what could be causing the problem.

.AVI from Sony Vegas 7.0 + Vista = Error Message... HELP!?

I would uninstall Mcafee to see if it is the problem. I would amount if it was working great up to that time the install that it is probably blocking your program from working correct. Hope this helps.

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