Another "Help me!" Dreamcast Post

[Hokkey]

Hello,
I've been working on setting up a dreamcast emulator and I'm having ridiculous issues with it.
I've mostly been trying to get NullDC to work. I've tried 1.04_136, 1.04_141, and 1.04_150. I have the bios in the proper place. I have tried using with and without the NoTrace. I have downloaded every possible C++ version (86 and 64) from microsoft's website. I have tried multiple roms from multiple sites in cdi format, gdi format, and in zipped formats. I have tried deleting the cfg file. I have searched a ton on this issue to no avail. I'm hoping someone out there can walk me through this one.
I can get NullDC to load, and I can to Normal Boot to choose a game. However when I actually choose a game and load it, it immediately crashes. If I choose No Disk, it also crashes.

EDIT: I forgot to add that occasionally I can hear the first two notes of the dreamcast beginning screen starting up. I don't know if that helps at all, but maybe. Also, I've tried Reicast through Retroarch with the same files. They boot up, but I'm not getting anything on screen. I can hear the games, I get all the sound, but only one shade of color in the emulator. (I know this is a seperate issue, but I feel that because I can hear the game, then the cdis and gdis aren't broken).

My system specs are:
AMD Phemon II x4 965 3.4GHz, 8 GB Ram, NVidia GeForce 9800GT, Windows 7 Ultimate

Problem signature:
Problem Event Name: BEX
Application Name: nullDC_Win32_Release.exe
Application Version: 0.0.0.0
Application Timestamp: 5351901e
Fault Module Name: StackHash_0a9e
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Offset: 74786554
Exception Code: c0000005
Exception Data: 00000008
OS Version: 6.1.7601.2.1.0.256.1
Locale I 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

If there's anyone out there who can help me out on this one, I'd be much appreciated. Hopefully this is enough information to diagnose the issue.
Thanks