I installed Windows 8 RTM and iTunes (which includes QuickTime). I then installed Max 6.0.7 and I'm trying to use it under "demo" mode before deciding whether to upgrade from Max 5 that I have.
To cut a long story short, any Jitter object I try to create in a new Patcher (or load from an existing file) generates errors in the Max window.
The following is the error for "jit.hello":
Quicktime not installed.
Jitter requires Quicktime to be installed to run.
Please download from www.apple.com and install.
jit.hello: out of memory
Then, for "jit.uldl":
jit.uldl: could not allocate object