Ethernet MAC 10/100 Mbps

while simulating tb_ethernet.v an error is shown by xilinx ISE simulator 9.1. Can anybody kindly resolve this error. The error is Simulator:329 - "F:/skalkura/Xilinx 9.1/mac/tb_ethernet.v" line 1582 Verilog tasks/functions with fork-Join constructs are unsupported.

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Is this bug still valid? I guess a lot has happended with Isim, and from what I can read, it looks like a missing feature in Isim. Would be good if someone could do a simulation with a more recent ISE

I also have the same dout that is this bug still valid?

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