Currently Being ModeratedOct 15, 2012 7:21 AM (in response to senhat)
What OS are you running? Snow Leopard? Lion? Mountain Lion?
Currently Being ModeratedOct 15, 2012 10:00 AM (in response to senhat)
No problem, perforn the #12 OnyX cache clearing routine (and others as needed)
Mac's usually don't need regular maintainence, but over time they can get funky, so the above link Steps should do wonders to fix everything in software on your machine.
Also don't forget to backup, resotring from a previous stable bootable clone is like a magic pill for nearly all ills, including hard drive crash.