[Kelly Griffin] “My SVP10 is rock solid except for one classic (for me) issue: It just hates WAV files, period. It loads them, but they’re always just completely wacked out and unusable. They’re fine playing them within Windows, but Vegas is the problem.”
You have a serious problem. WAV is the native format for uncompressed audio in Windows. Vegas Pro loves WAV files and it is highly recommended that you always use WAV files. If they don’t work on your PC then you need to figure out why, or perhaps it’s time to reformat and start over. Something you installed is causing Vegas to not accept wave files. You need to find out what that is an uninstall it. One way to do this is to use GSpot which has the ability to show you the filter chain that is being used:

This will show you what is processing the WAV file. This is what it says on my PC:
Render OK. The following combination of filters was used:
(Src)-->>--(A)-->[Wave Parser ]>--(B)-->[Default DirectSound Device ]
See what yours says.
~jr
http://www.johnrofrano.com
http://www.vasst.com