Citrix latency?

Client just rebuilt their Citrix Server over the weekend and is now finding that their Navision Connection is running considerably slower. I realize this isn’t a lot to go on and I am in no way a Citrix Expert, but where should I be looking to help this client get back some of the speed he had earlier? Darren Bezzant, NCPS, NCSD dbz@nb.aibn.com

The description of the problem is too light, but the first things to do is to check that ZUP file or TempFile are not store on a mapped local drive.