How do I stop my MacBook from ONLY booting in Safe Mode

Question

I have a new Intel MacBook with 512 Mhz of Memory. My granddaughter loaded about 8 programs from the dock all at the same time. Now, the computer will only boot up in safe maode. Does anyone know how I can get the machine to boot up properly? And yes, I have turned it off and on normally to see if this would fix the problem - but no luck. Help!!
MacBook   Mac OS X (10.4.8)  

Answer 1

"Now, the computer will only boot up in safe
mode."
In my earlier response I assumed that you booted into
safe mode by holding down the Shift key during
startup.
Upon reconsideration, I'm wondering if you meant
instead that the computer boots into safe mode by
itself, without your holding down the shift key. If
so, this would indicate that the computer suspected
some inconsistency in the filesystem and is booting
into safe mode in an attempt to repair the damage.
This repair can take some time. Are you allowing it
10-20 minutes to finish the task?
If so, and it still won't reboot into regular mode,
then you probably should start the computer from the
Installation Disc by inserting the Disc before
shutdown and then holding down the C key during
startup.
Don't actually install anything, but use the menu at
the top to run DiskUtility on the hard drive. Tell it
to "Repair Disk".
Sorry I didn't see this post before I responded to your first one. Yes, this is exactly what is happening. I am not holding down any key to force it into safe mode - it's doing that all by itself. I will try the 10 - 20 minute repair time as you suggested. What will I see happening after this period of time has elapsed? Does it matter if my screen goes into "sleep mode" before the 10-20 minute time is up? And then, if this doesn't work, I'll try your other suggestion using my installation disc.
Thank you!!!!