I have successful config teamcity v4.0 (Build 8080), with perforce as VCS provider. Orignly it works ok, but today I find a problem, I have checked in some resource that has different encoding, like UTF8, UNICODE, all those resource file has a signature at the begining of the file. However, when teamcity checkout the code from perforce, the signature was removed. I wonder if it is issue caused by teamcity.
BTW, my perforce version is "Perforce Visual Client/NTX86/2008.1/164135".