Black/White/unrendered windows in Beryl

Binary package hint: beryl-core

Package is either beryl-core or beryl-manager
Beryl:
If I open multiple windows of any application under any user on any desktop or multiple at once, they open black. This is dependent on many things, I guess you could say, it literally depends on the "area" used by the cumulative total of windows I have open. The more open, the more likely I am to have the issue and it is very reproducible. When a window shows up black, I can reduce the area of the window horizontally, vertically, or both to eliminate the problem. The more windows I have open, the smaller I have to make subsequent windows. It seems to be independent of having windows on multiple desktops or having transparency effects and so on applied. I have found a workaround for the issue, seems to be 100% so far: under Advanced Beryl Options in the right-click menu of the Beryl Manager icon in the Ubuntu gnome "systray", if I select "Copy" as the "Rendering Path" the issue is eliminated, however "wobble" and the snaky-minimize action have lower performance, I assume "Texture from Pixmap" is supposed to be higher performance. I have yet to be able to re-create the issue while using Copy instead of Pixmap. I know I'm not the only one to have this issue, I hope this helps as a workaround and for finding the root cause!

Other technical notes:
 - I am using x86 under an AMD64 for compatibility reasons
 - beryl-manager is being loaded from within my user profile under the gnome window manager as a regular startup item to initiate the software
 - I am NEW to Ubuntu on x86 coming from using Debian under SUN4U Arch., please forgive some possible technical oops on my end related to *nix, I'm used to nothing working and being given "lol" as the net reply :)
 - I am using the nVidia driver automatically downloaded by Ubuntu on 22APR07, my Ub distribution was downloaded on 20APR07 from standard-support release repositories 7.04
 - AMD 64 Venice-Core 3000+, 1GB PC3200, nForce4, GeForce 6600GT PCIX 128MB
 - I receive no error messages, just the black windows I can resize or change my settings to resolve