Insert the BenQ DVD and choose OPEN See if there is a restore option. I guess you already tried the Drivers?
I believe that either your installation of vista is corrupted [which does happen ], or your graphics card is FUBAR. To determine which the first thing you need to do is rule out vista by reinstalling it. It could solve your problems, if it is vista related. The disks that came with your computer should have the option of reinstalling vista. Look for something that says "restore windows to factory condition" or something like that. If you would like you can list the disks by title we should be able to point you in the right direction. Sorry about this but sometime you have to do what you don't want to. Back up your data first because a reinstall will erase it. Its a good thing that you still have the ability to use your computer, if only in reduced functionality. Some people who have to reinstall aren't so fortunate and therefore have a really hard time backing up data if they can do so at all.
Just to add: There may be an "Upgrade" option which should retain your data and programs but will require reinstalling SP1. Also you could try to run a Live CD such as ubuntu: Ubuntu Home Page | Ubuntu Your VGA driver appears to work as seen in Safe Mode. Why you cannot load a driver is mysterious and perhaps the graphics chip is damaged as townsbg suggests. Running a Live CD would indicate that and perhaps let you install a driver.
True that running your computer from a live cd of linux would allow you to test your graphics, which I'll admit that I didn't think of, but I foresee several possible issues with doing that. One is that you would have to know the correct driver to copy onto your windows installation (you just can't run the program & install it from linux, or am I wrong). Second is that linux isn't certified to write files onto the HTFS file system which Vista uses; doing so could cause corrupt files [probably just the one you tried to copy] which doesn't solve your problem at all. Third is that you have to pray that Vista finds & can use the driver. This sounds like an advanced operation to me. You could try it though.
Please ask any questions. We are all here to help each other. If you boot your BenQ DVD you should see if there is an "Upgrade" option. If not then just close it out for now. If you need help and want to make a Live CD just ask.
That is an ISO file. Do you know about ISO files? It is a "Disk Image" and needs to be burned as such. Do you have a burning program such as Nero? If not here is a free ISO burner: ISO Recorder v 2
I don't know. Not familiar with Daemon Tools. Basically what you need is a boot CD/DVD. You can burn what you are downloading to a CD/DVD as long as you have the software to do so. The point being it is not a simple data burn but an Image burn. You need a program that will let you "Burn Disk Image".
Are you asking if you can mount it in window? No what jephree is talking about requires you to boot into the cd. you will not be running window but linux. Does that make sense?