Ntvdm: Usually not much hope there without add-on. Outlook: If not a corrupted pst, usually 100%CPU is caused by html mail is likely. So you are basically talking about the same things that mess up the browser, which includes having "a bad internet day" (such as last Friday). It is unusual for it to be "hardware", but a bad lan interface (from nic to switch or vlan) could cause it. Maybe in conjunction with a bad site or internet day could push the process "over the top". You know how to look for those things (and if you give up you know where I am.) tim Timothy R. Mangan - Founder, TMurgent Technologies tmangan@xxxxxxxxxxxx www.tmurgent.com (+1)781.492.0403 _____ From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Brian Madden Sent: Tuesday, November 25, 2003 2:03 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Process Consuming 100% util Hello All, One of my friends has a MetaFrame server where "random" processes consume 100% of the CPU utilization. When this happens, the system (of course) becomes very unresponsive. You can right-click and kill it via task manager, and everything is fine. The weird thing is (and what's throwing me for a loop) is that one day it's ntvdm.exe, the next day it's outlook.exe, etc.. different apps, different users, different sessions, same server, same problem, same resolution. MetaFrame XP, W2k, Office 2k. I don't want to use any kind of clamping software because I'd like find the real cause. Any ideas? This guy has three servers, and it only happens on one of them. I'm keen to call it a "hardware" problem. :-) Brian Brian Madden brian@xxxxxxxxxxxxxxx +1.202.302.3657 Visit www.brianmadden.com for in-depth Citrix, Terminal Server, and server-based computing news and analysis, white papers, downloadable videos, and product reviews.