Tell me about, it's driving me insane,
We are using Flash 10.1 and Shockwave 11.5.
The only thing that i can think of is that it is our install mediums for these programs. They work fine if a general administrator installs them but if they are installed by the system account they break the machine.
the only problem is i can't seem to find the stand alone installers for flash and shockwave. Everything that i can find on the adobe sites what me to sign to some distrubution rights first, (Which i have applied for, if it makes gettings to stand alone installers easier then its fine).
any chance i could get a copy of the install files you use, something that is known to work, that way if it fails on my box then i have some further digging to do.