samba - Feb 2008 - Slow response time opening documents from Samba on Redhat compared to opening them on Sun

Can you give me an explanation of why I am experiencing such slow
response time on opening a document on our Linux environment compared to
our Sun or Windows environment?  

I should be seeing the exact opposite because my SUN server has UNIX - 2
x 300mhz RISC with 8gb RAM and my Linux servers are running Redhat - 2 x
3.0ghz Intel with 16gb RAM. 

SUN Samba  < 1 seconds to open a 1k document
Linux Samba 12+ seconds to open a 1k document
Window 2003 < 1 seconds to open a 1k document

I have these Samba servers within my firewall so security is not an
issue and these servers are on the same network.

James White 
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