|Hast du mal kontrolliert welche Fullscreen Resolution in Null DC eingestellt ein? Soweit ich mich erinnere kann man diese ändern, und vielleicht ist diese höher als deine Windowed Resolution.
Wegen dem Sound, sind in den Optionen folgende Häckchen gesetzt:
Enable CP pass
Womit du dich auch noch rumspielen könntest wäre folgendes:
Under the Options menu, go to PowerVR. There are 4 options that are safe to mess around with. Resolution, Aspect Ratio, Sort, and Modifier Volumes. Let me go over them one at a time:
"Maximum Supported (Highest quality)" - This means that the game will not be stretchd at all. If you change the size of the window or enter fullscreen, the game runs at that resolution, essentially.
"Maximum, but up to 1280x800" - I haven't tested this myself, but I would assume if it gets any bigger than 1280x800, it starts to stretch it instead of actually running at that resolution.
"Native (640x480)" - This means the game will run at the native resolution regardless of your resolution, NullDC's window size, etc. This may increase performance if you're having any issues when playing in fullscreen or increasing the window size.
"Half of maximum pixels" - Example: If you play it in fullscreen at 1024x768, the game will actually be running at 512x384 (half) instead, and stretch the rest of the way up. It will probably give a performance increase.
"Quarter of maximum pixels (Lowest quality)" - Self explanatory. It will probably increase performance.
"Borders" - Maintains aspect ratio if you resize the window or play in fullscreen at a 16:9 resolution, for instance.
"Stretch" - Stretches the game to fill the window/resolution no matter what the size
"Extra Geom" - Now, this is the interesting one. This is basically like the "widescreen hack" in Dolphin, if you are familiar with it. What it does is this: If you play at a 16:9 resolution with this option, instead of stretching or adding borders, it will try to show more of the geometry of the game, giving you a wider view as if the game was actually meant to be played that way. It's not perfect though, and can cause a lot of visual glitches, so be aware.
This generally has to do with texture transparancey in games. If you notice any glitches related to that, mess with this a bit.
"Off (Fastest, lowest accuracy)" - I don't recommend having this off. See why below:
"Per strip" - And by below, I meant down some more:
"Per triangle (Slowest, highest accuracy)" - As its label portrays, this is the slowest, but most accurate in terms of texture transparancey issues. You may take a hit in performance if you use this option, but obviously you'll have less visual glitches (depending on the game). Unless it's really bad or bothers you a lot, I suggest using "Per strip." If you have a fast enough computer however, use this.
This has something to do with shadows. By default, this is set to the first option.
"Normal And Clip (Slowest, highest accuracy)" - Provides the highest accuracy in terms of shadows and things, but may impact performance.
"Normal (Good speed, good accuracy)" - Provides moderate accuracy and speed, as the label portrays.
"Off (Fastest, no shadows)" - This will probably increase your performance if you're having issues, but you won't see any shadows, as if it wasn't obvious.