ModelSim does not show FIFO's signals

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Hello,

I got a NIOS-II system with a custom avalon interface. This custom block extantiate a FIFO, which was created using the Megawizard tool. When I run ModelSim everything seems to be working but all the FIFO's signal are undefined.

ModelSim does not generate any errors or warning. The testbench does not have reference of the FIFO.

I'm running Quartus 8.1.

Thanks

Horacio

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Hi,

"but all the FIFO's signal are undefined." , all input and output signals ?

Kind regards

GPK