It's pretty hard to say; it works nicely on my macbook pro. First, you can try right-clicking in the window, clicking the 'Silverlight' item, and checking which version you have installed. Although written for Silverlight 3, I find slight improvements in how it works when run on Silverlight 4.
If you see no improvement, there is a modification I could have you make, just in case it would help. The UI loads from an .html file in
[SU plugins dir]/maxwell/sl; for the Scene Manager, it is
mx-scenemanager.html, while for the Maxwell Fire window, it is
mx-firewindow.html. If you open those files in a text editor, you'll see that they contain a series of lines which follow the form:
Code: Select all<param name="name" value="value" />
You can try adding a new one:
Code: Select all<param name="EnableGPUAcceleration" value="true" />
Depending on whether it helps, or does nothing, you can also try setting it to false:
Code: Select all<param name="EnableGPUAcceleration" value="false" />
This may have no effect whatsoever, but there is always a possibility -- just let me know what you observe. You should probably make copies of the files before you try this, so that you can easily get back to where you started. If you see no changes, then yes, you may want to try updating your drivers to see if that helps.