Thank you for reply..

Server OS - win 2008 Ent.edition

Database - SQL 2008 standard edition with sp1.. not updated any culmative patch and sp3.

I have switch on tace falg 1222 on server... after that deadlock graph not storing at error log..it means currently not deadlock happend

so, i m waiting and monitoring at error log file for deadlock info, I should post result for further analysis, .. once getting result.

Is it possible restet the counter values 0?, it is showing cumlative number 258