Starteam plugin seems to use the last directory set in the starteam client for checkout. This happens on Windows and Linux. On Linux I just deleted the .starteam directory and avoid using the client in the build account. With windows this is not possible.

8:00:59 Started by timer
18:00:59 Building on master
18:03:21 Computing change set performing checkout ...
18:03:22 *** Performing checkout on [41956] files
18:03:22 *** More than 2000 files, quiet mode enabled
18:03:22 [checkout] [exception] [Problem checking out file: E:\hudson\config\jobs\XXXXXXX-Checkout\workspace\E:\hudson\obsolete\XXXXXXXSDK\harness\config\fonts\Tslrom.thf]
18:03:22 com.starbase.starteam.SDKRuntimeException: E:\hudson\config\jobs\XXXXXXX-Checkout\workspace\E:\hudson\obsolete\XXXXXXXSDK\harness\config\fonts\Tslrom.thf (The filename, directory name, or volume label syntax is incorrect)
18:03:22 at com.starbase.starteam.SDKRuntimeException.wrap(Unknown Source)
18:03:22 at com.starbase.starteam.Server.wrap(Unknown Source)
18:03:22 at com.starbase.starteam.File.checkout(Unknown Source)
18:03:22 at hudson.plugins.starteam.StarTeamConnection.checkOut(StarTeamConnection.java:232)
18:03:22 at hudson.plugins.starteam.StarTeamCheckoutActor.invoke(StarTeamCheckoutActor.java:146)
18:03:22 at hudson.plugins.starteam.StarTeamCheckoutActor.invoke(StarTeamCheckoutActor.java:34)