[geeks] Hosting centers

[Big Endian]

Has anybody ever had troubles with ethernet cabling (plain cat5) in a 
datacenter?  I'm having network troubles at our server farm (hosted 
at an exodus data center).  Large levels of packet loss but there 
isn't any trouble with upto 15-20% packet loss in some cases.  I'm 
not sure why.  Its not the switch and its not the server loads. 
Could it be EMI?  would it be worth it to invest in shielded cables?

daniel