Getting SSMS error while open it

Hi,

I am getting below error on SQL Server log file. Its a continuos error

2014-04-25 09:24:20.22 Server      Process 0:0:0 (0x3b00) Worker 0x00000000106361A0 appears to be non-yielding on Scheduler 4. Thread creation time: 13042907079739. Approx Thread CPU Used: kernel 2251156 ms, user 86034 ms. Process Utilization 2%. System Idle 96%. Interval: 2359260 ms.

SQL Server version : 2008 RTM

Thanks 

Deepak Goyal