I'm trying to figure this out. I think when I play DIVX movies, it's like my screen blacks-out but only with certain movies. It does that in my real player and DIVx player. I have to restart my PC. Is this because of win-7 because I never had this problem with XP.

I'm using a AC3 filter
and the only time the filter icon pops up is when I play non-divx movies

What error messages are you getting, you can check in the reliability monitor in the action centre on win 7.

No idea why ac3 is only working on non divx for you, it works fine for me in win 7. Try reinstalling it.

check to make sure your display drivers are up to date

Idk, I've been having that problem ever since I installed win-7. Where do I go at to check for updates on drives??

drivers. find out the make and model of your video card and goto the manufacturer website for support software, if you have a pribox(HP,DELL,IBM etc) then goto their website and search the model number of your computer and get support for your hardware via them. Many priboxs have a utility to do this for you, check the start menu->apps and see if there is an app by your manufacturer... but since you said you installed win7 then probably not. If all else fails with the pribox steps then find the make and model # of card from the spec sheet at the manufacturer website,or check device manager video card, rightclick mycomputer->properties(or if all else fails open the box and get the chipset numbers off the chip, lol); use step 1.

hope this helps

click start button,on right panel right click computor and select properties.select device manager.
now you will see all your drivers,double click on display it now shows the name of the driver you have,right click it and select update driver.

If you going to update your video card drivers you always need to remove the previous version first. Reboot in safe mode and use Driver Sweeper or something similar to clean up any remnants of the previous driver install. Make sure you don't clean chipset drivers if your running a nVidia or ATI chipset just graphics drivers. Reboot again in safe mode and install the drivers and then reboot again. This will limit any potential problems with you updated drivers.

http://downloads.guru3d.com/Guru3D---Drive...p%29_d1655.html

That used to be the case but both Nvidia and Ati's installers have gotten good nowadays to the point where you can just run the installer, let it remove the old and install the new without any drawbacks.

wont go into details but hate using windows 7 -besides with most OS's takes time for all the buggs to be ironed out.
just uninstall realplayer it conflicts with that OS.
I went back to vista ultimate 64bit as ive had no problems with it at all.

I disagree. There is still always a few files left over. Otherwise Driversweeper wouldn't find anything.