[pstricks] conflicts with "ieee.cls"?

[Herbert Voss]

Nicola Pasquino wrote:
> 
>> put \listfiles as first line into your preamble, run _latex_
>> and send the filelist from the log file (at the end).
> 
> 
> This is what I get:
> 
>  *File List*
>     ieee.cls    2000/01/11

...

where are the pstricks files?

Herbert