Hi Recent patches been applied for anything? (has it always failed) - always failed for these specific users Event log errors? looks like its 'detecting' to enable HDX from the core (citrix servers) to the tier 2 servers - which of course fails.. as its ctx to ctx not thin client to ctx also we get The following application was terminated because it was hung: concentr.exe. Configuration changes? nothing new / recent - same app works for me... grrrrr ICA client updates? they havent changed. v12 on the servers, v11 on the thin clients Do the errors always stick with the user? What happens when they try a different client device? logged the user directly on as local admin of thin client - and same issue. but only with this error logged this time- The following application was terminated because it was hung: concentr.exe. Thanks again for the pointers and tests - very much appreciated..! From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of James Scanlon Sent: 14 June 2011 13:21 To: thin@xxxxxxxxxxxxx Subject: [THIN] Seamless crashing to desktop Anyone got any quick ideas of where to look as to why a published app is crashing out to a full desktop for some end users? It seems to be user 'account' related because when we setup a new account from a broken one - the same issues apply. The users are NOT admins and we have only launch published apps enabled.....?? J ______________________________________ C. Hoare & Co. is authorised and regulated by the Financial Services Authority with registration no. 122093. The FSA's address is 25, The North Colonnade, Canary Wharf, London E14 5HS. Registered in England no. 240822. Registered office 37 Fleet St, London, EC4P 4DQ Confidentiality Disclaimer: This message and attachments are confidential and may be privileged, and are sent for the personal attention of the addressee(s). If you are not the intended addressee, any use, disclosure or copying of this document is unauthorised. Information transmitted by email may be intercepted, lost, destroyed, corrupted or delayed and as a result, C. Hoare & Co. do not accept responsibility for any errors or omissions in the contents of this message. If you would like to confirm the contents of this email, please request a hard copy version. If the contents of this message are of a personal nature, the email will have been sent in a personal capacity and not on behalf of C. Hoare & Co. Monitoring/Viruses: C. Hoare & Co. may monitor all incoming and outgoing emails in line with current legislation. Although emails are screened for viruses, C. Hoare & Co. cannot guarantee that any transmissions will be virus free. ________________________________________