Folder properties failure

[wpecka]

ok, so i've recently built my third computer.

i bought all the parts from newegg, these include:

asus integrated graphics/sound mobo (yes integrated graphics... tight budget)

2 gb mushkin ram

pentium 4 2.4gb proscessor

430 watt antec power supply

320 gb hard drives

lite-on cd/dvd writer/reader

and windows xp with service pack 2

now i booted up and loaded windows successfully and ran all the drivers etc. i loaded my desired programs easily and microsoft office.

so that isnt the problem

however when i installed mozilla two things happened,

first- certain webpages wont open like youtube and yahoovideos and sometimes gmail (a problem)

this also doesnt work in internet explorer

second- i thought that maybe the problem was in the properties of mozilla so i went to check it out (right click, properties) but when i did "my computer" (explorer not my actual computer) froze and then displayed "winexplorer.exe has encoutered an error and must now close", that is a very bad thing!!!!!!

also certain programs fail when run for more than a couple of minutes like stronghold 2, 3ds max, and windows word. i dont know if this refers to the same problem or not but if possible i would like to have it fixed as soon as possible so any help is generously thanked

[-pops-]

Are there any reports in the Event Viewers that might correspond to the problems you are getting?

Have you installed suitable antivirus/antipsyware/anti-anything else you should have? Are they up to date?

[ɹəuəllıʍ ʇɐb]

I think you need to install Flash Player in order to see videos on certain sites. (And it's a separate installation for Internet Explorer and other browsers).

[wpecka]

i do have complete norton antivirus as well as the webroot spysweeper and several other diagnostics that are up to date

the problem i am haveing with the websites is not the plugins but the physical website doesnt open (i click on a link or type in an adress and the page never opens