Tried Compiz on this machine (In Linux Mint) and although it worked fine, i found that i didn't use it that much, and couldn't really justify the extra resources. Plus the machine seems to run a lot quicker without it enable.
Now i'm just looking into setting up fluxkeys instead so that i can change desktops with the press of F1, F2 etc... __{{emoticon}}__
NO, this is an old package called 3ddesktop. You can change the way it looks and works also. Not as complex as compiz but it looks good just to change desktops.
I have no issue with iceweasel/flash. I do get a full lock up when using K9copy. When it goes to make the iso, sometimes at the beginning and sometime as it finishes. I can't figure this one out either.