Need Advice!!

[MAGICMAN320]

Hi forum. I Need some advice.
I have a powermac tower 1.8 ghz 2g ram. Ive ad it for about two years now. Thinking about reformatting the hd. (starting over)
Since ive had it ive never done a defrag or anything. Just straight working on it. It crashes alot after i wake it up or during application loading sometimes.
When i make a dvd from i movie, the picture breaks up at times during playback. Thats why i decided to start over. What sshould i do to reformat or should i?
Any suggestions are welcome. Thanx in advance

 

[72930]

First try repairing disk permissions (in Disk Utility)...

 

[MAGICMAN320]

this is what showed up. whats next?

Repairing permissions for “Macintosh HD”
Determining correct file permissions.
User differs on ./Applications, should be 0, owner is 501
Group differs on ./Applications, should be 80, group is 501
Permissions differ on ./Applications, should be drwxrwxr-x , they are drwxr-xr-x
Owner and group corrected on ./Applications
Permissions corrected on ./Applications
User differs on ./System/Library/Extensions, should be 0, owner is 501
Group differs on ./System/Library/Extensions, should be 0, group is 80
Owner and group corrected on ./System/Library/Extensions
Permissions corrected on ./System/Library/Extensions
User differs on ./System/Library, should be 0, owner is 501
Group differs on ./System/Library, should be 0, group is 80
Owner and group corrected on ./System/Library
Permissions corrected on ./System/Library
User differs on ./System, should be 0, owner is 501
Group differs on ./System, should be 0, group is 80
Owner and group corrected on ./System
Permissions corrected on ./System
User differs on ./Users/Shared/SC Info, should be 0, owner is 501
Owner and group corrected on ./Users/Shared/SC Info
Permissions corrected on ./Users/Shared/SC Info
Group differs on ./private/etc/authorization, should be 80, group is 0
Owner and group corrected on ./private/etc/authorization
Permissions corrected on ./private/etc/authorization
Permissions differ on ./private/var/log/secure.log, should be -rw------- , they are -rw-r-----
Owner and group corrected on ./private/var/log/secure.log
Permissions corrected on ./private/var/log/secure.log

Permissions repair complete
The privileges have been verified or repaired on the selected volume