Start Up Problem

Hi All, need a bit of help thanks. I have an imac G5 running OSX 10.4.11.
Recently, I can't put the computer to sleep and the computer does not start up sometimes when powered on.
I ran disk utility and verified the disk, it stopped and gave this report;

Can you help please
And is this my problem turning on the computer???

Checking HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
%)
Checking Extended Attributes file.
Checking volume bitmap.
Volume Bit Map needs minor repair
Checking volume information.

Hard Drive
Error: The underlying task reported failure on exit


1 HFS volume checked
Volume needs repair

Try running Disk Utility from Applications > Utilities and do Repair permissions. If u have Onyx use that for Repair Permissions. If that does not sort it download and install this.

I would add that if Collin's suggestions don't remedy the situation, then you need to boot your G5 from the original OS Disk 1 that came with it, and effect repairs therefrom. Failing that, a full retail version of Tiger will do the job.

Reason? The internal OS Disk Utilities cannot repair a startup volume, namely your Mac HD.

Thanks I'll try that. If I update Tiger as Collin's suggests do i lose any files on the HD

No that link just reinstalls OS where needed over the top of what is there. Your User files remain.

Thanks again Collin's I'll try that...

Sorted that problem by the looks of things. Thanks Collin's