Folder with "?" - Bad sign?

When I boot up my computer now, a folder with a question mark appears for a few seconds, then it begins to boot normally. This started happening after I removed my windows partition using boot camp. Is this a bad sign? Should I be worried about this?

The folder with ? means its having problems finding a drive to boot from.

go into system preferences, select 'startup disk' and make sure that your hd is selected as your startup disk
-chris

Yeah it is, and it does find the drive to boot from eventually, but I was just worried that it had to search. Should I do anything?

Do you have DiskWarrior? I personally would run it on that hard drive...

Did you try running Disk utility on it to see?

Hmm...I don't have DiskWarrior....I tried repairing permissions with Disk Utility, should I do anything else with it?

Check the hard drive just to be sure.

I verified permissions and the disk, and repaired permission, and everything said it was ok. I guess that means its ok? Just weird that it has to search when it boots up, not a big deal I guess, though.

Go back into that System Preferences pane mentioned before, reselect your OS X folder, and click the Lock to make sure its saved

Bah....stupid me, it was because I had nothing selected in the startup section of system prefs, and I thought I did. I thought this because I did originally, but I guess removing windows must have caused it to deselect or something. Oh well, all fixed now, thanks everyone.