I am sorry for posting this as I have already posted it on the
comp.soft-sys.matlab.

I have a MatLab 7.2/Simulink 6.4/Xilinx System Generator 8.1.01
software installation. My problem is that the Xilinx Simulink blockset
is entirely unstable. For example, when I try to change the properties
of any Xilinx block, the Java runtime often crashes and takes MatLab
with it. All other non-Xilinx blocks run perfectly fine. I tried to
have MatLab use the system-wide Java installation but that didn't solve
the problem.

It is worth noting that when I installed the System Generator 8.1, it
refused to accept the comcli.dll library that comes with MatLab 7.2 so
I had to download an old dll from mathworks.com to avoid the error
message. After setup, I reverted back to the original comcli.dll
library because MatLab refused to run with the one I download from the
website.

The error message MatLab reports when it crashes is titled "Microsoft
Visual C++ Runtime Library Error". The contents of the message are not
clear.

Any thoughts would be greatly appreciated.

Thank you,