Admin CP search problem

[Tyler Hill]

Whenever I try to search something in the Admin CP it says I don't have permission and logs me out. 

[FunFirst]

Yeah, happends to me all the time, just try writing in the seach input fast with deleting some chars u typed, fast, and it will just log out.

[Adriano Faria]

Bug already fixed for the next beta: http://community.invisionpower.com/4bugtrack/beta-4b-error-on-live-search-ACP-r1244/