I am running a Windows 2008 r2 box with Citrix XenApp 6.
there is some other user who has the exact same issue, we havn´t found out why it is happening yet. I would link you to it but its all in geman.
Could you please enable logging, do a printjob and post the resulting log here?
please also try our preview version of PDFCreator written in C#:
Not everything is finished yet, but it should run on terminal servers
it will probably be much faster to find/fix a bug in the new version.
Going to try the C# release now.
The c# version works ok.
there is no exact release date yet, but is getting a bit more complete every day.
I am not sure, which older versions don´t have this problem, but they are all still available on sourceforge.