Delay in Highlighting

It's taking about 4-5 seconds between hitting ctrl-k and the highlighting being applied to the resource (NICNT Matthew).  I don't have any downloading or indexing going on right now to explain the slowness.  I hope the speed is improved, it's interfering with getting through my studying.

HP Pavilion dv7 Notebook PC, x64-based, AMD Turion X2 Dual-Core Mobile RM-72, MS Windows Vista Home Premium.